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View Full Version : Wheel grinding - not for me!


Kimosabi
03-26-2007, 02:23 PM
Hi,
Not sure if this is the right forum for this. Has anyone ever tried not grinding their rims and see how that works? reason I ask is that I have found a way of not having to grind rims but still get maximum stopping power from normal V-brakes. I've been testing my new setup a bit and it works flippin brilliantly sofar!

Imagine a trials bike that doesn't need rim grinding! that is my bike! could be a bit of a break through idea really.:drool:

Any comments or questions?

guumer
03-26-2007, 02:29 PM
is it called tar?

Kimosabi
03-26-2007, 02:46 PM
No Sir, not Tar! anyone interested to hear me out?

bidaci
03-26-2007, 02:50 PM
Imagine a trials bike that doesn't need rim grinding! that is my bike! could be a bit of a break through idea really.:drool:

Any comments or questions?

Question, what is the breakthrough? Are you gonna share it or patent it?:naughty:

toyota200x
03-26-2007, 02:56 PM
Yeah lets hear what you are doing.

trauma100
03-26-2007, 03:26 PM
http://allyourbase.shackspace.com/thread_sucks.jpg

trialsrider50
03-26-2007, 03:27 PM
either tell us your grand invention or leave.

Keith Courage
03-26-2007, 04:23 PM
http://allyourbase.shackspace.com/thread_sucks.jpg

:rofl::rofl::rofl::rofl::rofl::rofl::rofl::rofl::r ofl::rofl::rofl::rofl::rofl::rofl::rofl::rofl:
still laughing......



god thats funny.


Share your idea.

FlatFender
03-26-2007, 07:22 PM
$20 says he used Rainbows, and Unicorns applied generously to his rear wheel.

Mat_P
03-26-2007, 08:39 PM
Question, what is the breakthrough? Are you gonna share it or patent it?:naughty:


no amount of patents in the world will stop deng anyways...getting anything biketrials related patented is a waste of money :P

Youngr51
03-26-2007, 08:45 PM
This is stupid.

decline
03-27-2007, 02:50 AM
this forum is to help be informitive not a fag...tell us or go back to the KK no one wants a queer bate on here acting like this.

Giant1118
03-27-2007, 12:24 PM
Im sure out of the however many amateurs and pros that grind there rims, You of all people are the only one person who was able to find something better, and be the first to think of it...

beastoftheeast
03-27-2007, 12:49 PM
splooge on the rim, flippin brilliant. sperm bonding ftw.

eturt9
03-27-2007, 01:01 PM
yes, pads can work without a grind or tar. we know

Kimosabi
03-27-2007, 02:19 PM
He he, I like the reaction, at least you checked out my thread.. some folks will always be knocking down ideas 'cause they have a one track mind! typical... Here was me thinking that trials riders are unique and think differently (flippin heck I do anyways!).

Informative is my goal people, see the attached pic, basically just add another brake pad on either side so it grips the actual tire when the brake lever is squezzzzed (Oooooh I just squezzed another one out, phewee).

I was surprised because it looks like most V-brake systems have quite a bit of space for the brake pads to move around in. So I figured why not try add another brakepad in there. And Damn, it works so well! I cannot get the back wheel to move when in use, the grip is amazing. The small thing to do is to position the extra pads (I just used old cheap ones I had that didn't find their way to the dustbin) just away from the tire so it doesn't touch it. When you press the brake lever it makes contact..as in rubber on rubber (kinky!) and we all know how rubber sticks right?!

Sorry but I'm sticking with this idea of mine! it's great. Stuff the rest who can't deal with it. It works for me.

Oh Shiiite, have I embarrassed myself or let the cat out of the bag. What are your thoughts and remember you saw/laughed at it here first!

8323

Greetz fromn the UK

FlatFender
03-27-2007, 02:52 PM
My only concern would be making the tire lose its bead

thefool808
03-27-2007, 02:58 PM
I can tell you right now, that is not a good idea.

Kimosabi
03-27-2007, 03:19 PM
I can tell you right now, I'm using it... no problems sofar (re the tire bead). Proof's in the pudding, and my pud's sweeet.

3rd Degree
03-27-2007, 03:23 PM
Not good in the long run. you are going to ruin the sidewalls of the tires after a little while. and tires aint cheap

Kimosabi
03-27-2007, 03:37 PM
The brakes don't touch the tire..only when you press the lever... so it doesn't wear the sidewalls out. Maybe I should come back in a few months and post my results?

Keith Courage
03-27-2007, 03:57 PM
Go ahead, run it for a few months. Post your results then.

Too bad, in a few months you're going to be posting about how you have to buy new tires, possibly a new face because shit went awry at the wrong time.

My pads went out of alignment once for about a week before I re-adjusted them. There is definite visual damage to my tired sidewall. god knows what would have happened had I not adjusted my pads for a month or longer.

good luck.

beastoftheeast
03-27-2007, 04:03 PM
hahahahahahahahahahahahahahaha. nice. post a pic of your tire in a few months will you.

Kimosabi
03-27-2007, 04:21 PM
Your mis-aligned brakes were rubbing on the tire all the time , am I right... that is why you'll get the definite visual damage on the tire sidewall. My setup only touches the tire when needed (in my pic it seems like there is some wear but I checked, it's actually just a clean tire where the brakepad makes contact..no wear at all..the rest of the tire is full of dirt..like it should he he). I think I'll be making you eat your words.. errr - brake pads.

I'll be back - with the 9mm... spanner, even if it is with a knackered tire.

stewpend0us
03-27-2007, 04:31 PM
it's an interesting idea...rubber on rubber for the breaks but just like your break pads wear on the rim your tire is going to wear on the break pad. It's clean because there is friction there when you apply the breaks. friction = wear. wear = dead tire. dead tire = you're wrong.

try some kind of rubber coating on the rim (tar's probably a better option) that might work and be unique but you're going to have to replace it just as often as you replace your pads.

eturt9
03-27-2007, 04:49 PM
... and for extra braking power shove a stick into your spokes.

Chader
03-27-2007, 04:56 PM
it's an interesting idea...rubber on rubber for the breaks but just like your break pads wear on the rim your tire is going to wear on the break pad. It's clean because there is friction there when you apply the breaks. friction = wear. wear = dead tire. dead tire = you're wrong.

try some kind of rubber coating on the rim (tar's probably a better option) that might work and be unique but you're going to have to replace it just as often as you replace your pads.
ditto

if there is contact and movement, there will be wear

you will ruin your tire whether or not you choose to admit that later

AgrAde
03-27-2007, 05:42 PM
ROOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOfl

Gaz
03-27-2007, 06:18 PM
I won't be using this method.

Of all the stupid suggestions on this forum, I think this one takes the cake....

Bryan
03-27-2007, 08:19 PM
http://www.observedtrials.net/vb/attachment.php?attachmentid=8323&d=1175022118] (http://www.observedtrials.net/vb/attachment.php?attachmentid=8323&d=1175022118)
Greetz fromn the UK
:bowrofl: :bowrofl:

stewpend0us
03-27-2007, 08:22 PM
:bowrofl: :bowrofl:

1337 brakes!!

Giant1118
03-27-2007, 08:48 PM
i have to admit, ive never seen it before.

it wont work tho, tire = ~70-80 bucks its not worth the cost. minus whale just grind the rim once a month or score it.

Tanner
03-27-2007, 11:33 PM
... and for extra braking power shove a stick into your spokes.

aaaahahahaha

J
03-28-2007, 02:20 AM
I think what you've done is interesting, but there's no way that I'd run it. I'll stick with my grind and my Pabst By God Blue Ribbon beer.

rush
03-28-2007, 05:18 AM
Yes, definitely the wrong forum for this.

Do you have to try and generate ridiculous interest before you post details of anything?

Dont be a fuckstick.

Listen to this guy:


this forum is to help be informitive not a fag...tell us or go back to the KK no one wants a queer bate on here acting like this.

rush
03-28-2007, 05:19 AM
I won't be using this method.

Of all the stupid suggestions on this forum, I think this one takes the cake....


And dot.

netto
03-28-2007, 06:02 AM
why not just grind your rim and run nice pads?

Chris
03-28-2007, 06:09 AM
it's an interesting idea...rubber on rubber for the breaks but just like your break pads wear on the rim your tire is going to wear on the break pad. It's clean because there is friction there when you apply the breaks. friction = wear. wear = dead tire. dead tire = you're wrong.

try some kind of rubber coating on the rim (tar's probably a better option) that might work and be unique but you're going to have to replace it just as often as you replace your pads.


This thread is full of smartness.

chronic
03-28-2007, 08:25 AM
(Kimosabi)-->...Are you stupid? You can't afford good brake pads (Perhaps a reason your brakes suck) but you can justify wearing a fucken hole through the wheel.

You're pads are done by the way, try buying something ...good.

stewpend0us
03-28-2007, 08:28 AM
This thread is full of smartness.

lol spelling is not my strong point....that word gets me alot. shit.

stewpend0us
03-28-2007, 08:30 AM
Chader quoted me first!! is he thmart too???

stocktrials
03-28-2007, 09:35 AM
have you TRIED grinding?





seriously.. its easier, cheaper and better

Chader
03-28-2007, 09:48 AM
I could give two shits about the spelling.

That is by far the most common mistake I see around here.

I just like the statement that clearly explained why the OP is a freekin' idoit to think he wasnt hurting his tire.

stewpend0us
03-28-2007, 11:50 AM
I could give two shits about spelling too but seems to be something nearly all of the people i know get picky about....were you able to understand my point? that's all that i care about.

Chader
03-28-2007, 11:53 AM
yuppers

Cryo-Cube
03-28-2007, 12:00 PM
i´ll may give it a try. The pad is NOT constantly rubbing on the tire. Im pretty sure you could do this for months without killing the tire.

full_clipp
03-28-2007, 01:47 PM
Do you have to try and generate ridiculous interest before you post details of anything?




yes he does:

http://www.observedtrials.net/vb/showthread.php?t=20072

MIKE1968
03-28-2007, 02:12 PM
:bowdown:

free_rideman
03-28-2007, 02:21 PM
If the second pair of pads can be spaced far enough out, then this should really work. That way you can "fully" lock the rear wheel when you really squeeze the lever at the end stroke. That way the wheel should be already stopped, and thus it will prevent the wheel from slipping.

Static friction doesn't wear the tire out. Kenetic friction does.

If the spacing can be solved, then this is one cool idea!


And for all the haters, try improving and helping with an idea instead of just flaming for it. That is how trials can evolve.

MIKE1968
03-28-2007, 02:27 PM
I do love how all of the positive feedback is from beg-sport riders :hsugh:

rocpyro
03-28-2007, 03:03 PM
New ideas are bad, do what everyone else does.




Get some new pads and a grinder, even if it does work, its fucking stupid looking.

Kimosabi
03-28-2007, 03:11 PM
Go on who wants to give it a try?

Most of you obviously can't be arsed to give something new a chance.. suckers, you snooze you loose. Wheel grinding is for people that just know what others have told them, I'm always thinking of new ways of improving stuff, sorry...
Get the spacing of the bake pads right and the tire won't wear (just like I said initialy and Free_rideman says), don't you get it?

P.S. those losers that send me private messages to say I'm a 'fucking idiot ' (you know who you are) can eat my 3 week old underpants.

eturt9
03-28-2007, 03:22 PM
whatever floats your boat...
I'd take a little emphasis off the word "improve" however. There is something to be said for "tried and true"

Chader
03-28-2007, 04:57 PM
P.S. those losers that send me private messages to say I'm a 'fucking idiot ' (you know who you are) can eat my 3 week old underpants.
You're supposed to change those everyday.
Did you skip health class that day.
Maybe you are trying to improve the clothing/cleaning world too.:wuteva:

Wheel grinding is for people that just know what others have told them,
It fukin works, whether it's NEW or no. End of story!!!

darkside
03-28-2007, 05:16 PM
Hate to add feul to this fire, but have you tried getting it wet yet?

You can get excellent braking out of a good set of pads and a smooth rim. The only reason to grind is for wet/dirty environments. If this doesn't work in the wet, then you've really not gained anything over a decent set of pads (which, honestly, it really looks like you need new ones).

Also, a tire's sidewall is not the stiffest structure. I have to think that the amout of flex in the tire would seriously reduce the amount of braking power you think you might be getting.

And the wear issue really can't be ignored. It seems like you may be in denial about it, but no matter how perfectly you space the pads away from the tire, you're still going to wear your sidewalls away much faster than your knobs will wear down.

netto
03-28-2007, 05:25 PM
so you mean that by the time the 2nd pair of pads touch the tires, then first pair would have slowed the wheel down enough that there wouldnt be any wear on the tire?

if your brakes are flexy enough that you can control this, there is no way the first pair of pads can stop the wheel in a short enough period of time for trials. In this case, the 2nd pair of pads would need to be engaged before the wheel comes to a complete stop, for your brakes to be of any use.

also, since your tires are soft, your brake lever feel would be terrible, giving you no control of your back brakes.

with you being a beginner level rider, i am not surprised that you have no idea what kind of brake power is required for advanced trials moves.

go buy yourself a nice brake booster, a pair of trials brake pads, and grind your rim.

Ebon Dragon
03-28-2007, 06:15 PM
^ listen to this man

bushlawyer
03-28-2007, 08:16 PM
lol, what a bs topic
the engrish this guy speaks pisses me off more than the crappy idea

ten bucks says he doesn't post back in a months time.

pan man
03-28-2007, 11:56 PM
Oh man, just because the pads arn't wearing down the tire while you are riding, doesnt mean they wont wear down the tire when you are braking. Think of a rim, the pads will wear down a rim eventually.

Also, the reason we grind our rims is so they work well in the wet. No grind is fine as long as it doesn't rain / isn't humid.

Freerideman, what you say is true, but if it rains you're fucked.
And then, why even use two sets of pads? May as well ditch the ones that brake on the rim, and only use the ones that brake on the tire.

Gay idea.

Bryan
03-29-2007, 02:04 AM
Also, sometimes people modulate their brakes, instead of just locking them on the spot... like in any actual competition riding.

Not like this topic even merits anyone's response. Ride your bike and stop trying to be creative. You must be eleven years old at maximum. If you put the time in to riding that you put in to thinking of inanities like this, you could be a very good rider someday.

The Real Twitch
03-29-2007, 03:00 AM
I did not just read this whole fucking thread:squint:

Cryo-Cube
03-29-2007, 04:08 AM
tried it for 10 minutes and it really seems to give some extra stopping power.
Its a bitch to set up though.
Not for everyday riding, but if you know you need some extra power i could imagine this being a option. Modulation seemed ok too.

everybody talking about tire wear... shut the fuck up before you even tried it. No one tired it so you dont know how long it takes to seriously damging the tire.

rush
03-29-2007, 05:17 AM
sorry, your ideas are useles
Plain old riding is where its at

:dunno:

Cryo-Cube
03-29-2007, 06:37 AM
what has a quote from another (not working) idea he had to do with this?
I probably wont use this 4pads method, too much hassle with the pad alignment and other stuff. But it seems to improve the stopping power.
My brakes work flawlessly 95% of the time anyway.

chronic
03-29-2007, 08:35 AM
Of course it would improve stopping power, its rubber on rubber. Its like rubbing your dick up against your shoe opposed to the fridge door.
But think about it, your now implying a shit load of friction to just one spot on your tire... you dont think this is going to fuck up your tire. Do it for a month and suddenly your tire has no side wall strength due to those two lines.

Have you ever seen a bike that had a tire rubbing the chain stay for an exteneded period of time? It actually wears the metal down.
Thats rubber against metal.
Rubber vs rubber... think about it. I dont know, I guess personally I would choose to protect my 80-100$ tires, when I dont need to shove something else into the wheel to stop rolling... but thats just me.

I'll give the kid credit for thinking. Nothing wrong with that. But in this case, the idea is going to suck back more time and money than the tried and true methods.

Cryo-Cube
03-29-2007, 09:18 AM
the pad only touches the tire when you´re braking. The wheel approximately moves 2 inches during the time. It doesnt rub on it all the time

Lets say you pull your brake 400 times during a ride (2inches of rubbing during braking -> 400x2= 800inches) . The wheel will move 800 inches with the pad rubbing on it. On a 26" wheel, those 800inches equals 9 full rotations of the wheel with the pad rubbing against it.

Like i said. I wont use this extra pad trick since its a bit of work to set up and my brakes work fine. However i think this could be useful when you need extra brake power for a couple of rides. For instance if you go to ride a place you rarely visit with extreme slants&steep rocks.

ash-kennard
03-29-2007, 09:55 AM
FFs, either don't ride in the rain or get a grind

stewpend0us
03-29-2007, 10:03 AM
9 rotations per ride will add up in a month assuming you actually use your bike..and you're not accounting for break modulation where the pad will drag for much longer than two inches.

Only using it in certain situations makes sense (except for set up time)....has anyone tried dumping water on it yet? seems like if you could make it work just as well in water as dry you might be able to get a little more interest

stinkybastard
03-29-2007, 11:16 AM
just wait til your rim goes out of tru, then your pads for sure will be contacting your tire under non braking. This simply put is the silliest idea I have ever seen. Stop buying your black pads from your lbs, they do you no good.

netto
03-29-2007, 11:53 AM
the pad only touches the tire when you´re braking. The wheel approximately moves 2 inches during the time. It doesnt rub on it all the time

Lets say you pull your brake 400 times during a ride (2inches of rubbing during braking -> 400x2= 800inches) . The wheel will move 800 inches with the pad rubbing on it. On a 26" wheel, those 800inches equals 9 full rotations of the wheel with the pad rubbing against it.

you're making the assumption that the brake will hit a different area of the tire every time, which would be the best case scenario. 2" is also quite a bit of drag.

J
03-29-2007, 11:57 AM
If anything, its been an interesting discussion.

Kimosabi
03-29-2007, 12:38 PM
Glad to see it caused a little storm in the tea cup. I'm out riding most days, practicing. Getting better all the time and enjoying every moment. It has been raining on and off and that made no noticable difference to the braking to be honest. My brakes don't make any noise either.

Cryo-Cube (http://www.observedtrials.net/vb/member.php?u=814) is onto something there, maybe use it when needed. I'm using it and am quite happy for now. Why spend all the money on fancy brakes when I have this. The test will be how long the tire lasts, like everyone wonders about. I'll let you know, good or bad results!

Hey bushlawyer (http://www.observedtrials.net/vb/member.php?u=5459), I piss you off yeah? Why don't you go speak to your ice cream mafia friends to see if they loan you 10 Ozzy bucks. On your bike mate, as they say in the U.K...

decline
03-29-2007, 07:21 PM
just wait til your rim goes out of tru, then your pads for sure will be contacting your tire under non braking. This simply put is the silliest idea I have ever seen. Stop buying your black pads from your lbs, they do you no good.


thats a very good point. and as far as wearing out just with braking it will. i had accidently not tightened one of my bolts enough on my brakes once and my HS33 shifted half on the rim and half on the tire side wall. i dont roll and and modulate with the back wheel much and it wore out my side wall pretty good in one ride. my brakes dont slip much either. i can only imagine it would destroy the side wall. in a month. now that is my personal experience not just an assumption of what it will do. not matter how fast your brakes lock up.

sethman
03-29-2007, 11:43 PM
hmmm. as much as i hate to give this guy credit for the "tire " idea i think the general idea of it is brilliant. WAY TO GO DUDE!most of th people that give you shit on this site mean no harm. more like constructive criticism. i think that all of us are usually looking for a way to make our brakes stronger without making compromises. the only thing about this idea that i can say is "brilliant" would be - (more surface area = a stronger hold and a quicker lock-up.).you got the jist of it. if we all had taller sidewalls and wider pads i know for a fact that would make it better. but im not willing to compromise that weight. if it works for you , then show everyone at the comp that it does.otherwise im going with CRMs and a grind. good luck though :bigthumb:
peace out!!!

seth

eturt9
03-30-2007, 12:35 AM
I know for a "fact" more surface area won't do shit.

thisthingz
03-30-2007, 01:17 AM
I know for a "fact" more surface area won't do shit.






i dont think its the surface area thats helping it out. its the rubber to rubber contact instead... probably has alot more friction, correct me if im wrong

sethman
03-30-2007, 02:48 AM
i do agree with the rubber to rubber friction. but surface area would be better. i mean why do we run bigger tires?

hophopsnap
03-30-2007, 03:06 AM
this is why you and your girl dont rock both socks, cause that shit will break m8.

The Real Twitch
03-30-2007, 03:09 AM
this is why you and your girl dont rock both socks, cause that shit will break m8.

:h5: 2nd

manimal
03-30-2007, 04:41 AM
its good you're thinking of new ideas.. this I think is rather silly. I knew a guy that tried this, but not with trials. it lasted a month or so, then he splurged and bought better pads.

2 pairs of cheap ass no good pads, will never equal 1 set of good pads, grind or not. and both those pads look pretty ghetto man.. seriously..

I strongly encourage you to try out a grind with some nice pads if you haven't already..

as for the pic you posted, I just showed my co-worker the pic (he doesn't ride, and didn't read this thread), and first thing he said was "you're going to need a straight friggin wheel for that to work". I also noticed that there's wear showing already from the second pad. but this has all been said before...

my suggestion is go "back to the drawing board" on this one...not every idea can work out.. but don't give into convention dude, keep at it, the sport does need fresh ideas from time to time.. this idea sadly can't compete with the tried and true grindage..

fuck I'm bored at work...

Sneaker
03-30-2007, 05:00 AM
nobody uses brakes only for lock-unlock braking. there are many times you have to slip those brakes out.and what is going to happen to brakes when u do that?maybe put even disc brakes on the rear for extra extra braking?

Kimosabi
03-30-2007, 09:45 AM
Guys, girls, keep on saying your say. I'll report back later with my results. For all I know this thread will still be going in a couple months and I can make you eat your shorts. Some of you anyways..

manimal (http://www.observedtrials.net/vb/member.php?u=720)you normally need straight rims and tires on a bike?! any brake won't work or will rub if your wheels are bent! and it ain't wear, it just clean tire on my pic!

matiaspioli
03-30-2007, 10:40 AM
youre an idiot ,, use tar or a grind rim

stinkybastard
03-30-2007, 10:59 AM
Seriously can someone throw this guy in the kk.
Your pad idea goes against all that any mtber, bike mechanic stand for which is to limit friction and wear.

If you could rewind this thread like 4 pages ago your post could be like
"check out me ghetto brakes that are totally gonna fuck up my tire but I dont care"

Can we lock up this thread now...or move it to the kk?

bidaci
03-30-2007, 11:21 AM
I'm gonna mount some big ass magnets to my levers and run a steel wheel. Now that will lock up!

The Real Twitch
03-30-2007, 11:28 AM
I'm gonna mount some big ass magnets to my levers and run a steel wheel. Now that will lock up!


:hahano:
rotfz

eturt9
03-30-2007, 12:26 PM
i do agree with the rubber to rubber friction. but surface area would be better. i mean why do we run bigger tires?

no.

We use bigger tires for stability and so the tire is better at making some contact on the surface, vs a skinny tire that can bouce off and miss more. Plus a big bike tire can wrap around objects more and can run lower pressure which is a little different... you can get that whip out of the tire durign pedal kicks. Big wide tires are used in drag racing because they need super big side walls so the tires don't blow up with the super soft rubber they use....

Friction doesn't have anythign to do with surface area... even though it may seem like it.

But yea, rubber to rubber friction would be more.. but i still think its a dumb idea.

pan man
03-30-2007, 04:28 PM
Friction doesn't have anythign to do with surface area... even though it may seem like it.



uhh, you're wrong. Why do road riders use skinny tires? Less rubber touching the road = less friction.. :nuts:

Funny how everyone is bitching about "wearing out your 70$ tire" when we all wear down our $90 rims by grinding them away...

netto
03-30-2007, 04:36 PM
no vid no care

eturt9
03-30-2007, 04:54 PM
uhh, you're wrong. Why do road riders use skinny tires? Less rubber touching the road = less friction.. :nuts:

derrrrpp.. your not going to understand this because your an idiot. others might. If you want to try then read this.... http://www.madsci.org/posts/archives/2000-01/947776240.Ph.r.html

like i said before, it doesn't ahve to do with area. F= u/N.... do you see an A?

Chader
03-30-2007, 04:57 PM
Thanks for the info. I have had to deal with the friction vs. area debate several times in my job. It was a hot topic until I saw some studies in college that prove there is NO RELATIONSHIP BETWEEN AREA AND FRICTION.

Just because some people THINK they know, doesn't make them right. Everyone has some example they think justifies a link between area and friction. But they are WRONG.

thisthingz
03-30-2007, 08:03 PM
more surface area = not more friction, bigger tires are more stable and have more control because u end up putting less force over a bigger area, and if its like loose dirt the dirt is less likely to slip on you if ur putting less force.

pan man
03-30-2007, 09:01 PM
eturt, firstly, it's F=u*N.

Let me explain this better than you have so far: More surface area doesn't increase friction, because a greater SA would also reduce the pressure (keep the same N). If you increased force as you increased the SA to keep P constant, THEN an increase in SA would increase F (because you are increasing N).

So I forgot to think about the pressure part when I made my above statement, I assumed that more "tire" would automatically mean more weight, so more friction. So I was wrong the first time, but don't call me an idiot, and learn how to use proper grammar :hsugh:

KERNAL KLINK
03-30-2007, 10:32 PM
maybe jame grape jam...let it dry...
your idea seems ok but let us know in a few weeks how things are holding up..
RHYNO LINER...lol

KERNAL KLINK
03-30-2007, 10:35 PM
Seriously can someone throw this guy in the kk.
Your pad idea goes against all that any mtber, bike mechanic stand for which is to limit friction and wear.

If you could rewind this thread like 4 pages ago your post could be like
"check out me ghetto brakes that are totally gonna fuck up my tire but I dont care"

Can we lock up this thread now...or move it to the kk? THANK YOU:wuteva::wuteva::wuteva::wuteva:

bushlawyer
03-30-2007, 10:54 PM
"wearing out your 70$ tire" when we all wear down our $90 rims by grinding them away...


how many people here have actually grinded their rim so many times that they have killed their rims?.......i certainly haven't.....

I have a.. umm..its gotta be at least 4 year old 19" dx32.
tho i havent grinded my try-all rims...
has anyone had experiance with both these rims with grinding?\

(thought i'd actually turn this thread into practical discussion :) )

bushlawyer
03-30-2007, 11:05 PM
"wearing out your 70$ tire" when we all wear down our $90 rims by grinding them away...


how many people here have actually grinded their rim so many times that they have killed their rims?.......i certainly haven't.....

I have a.. umm..its gotta be at least 4 year old 19" dx32.
tho i havent grinded my try-all rims...
has anyone had experiance with both these rims with grinding?\

(thought i'd actually turn this thread into practical discussion :) )

..........-woah, double post. :)

Ross W.
03-30-2007, 11:45 PM
youre an idiot ,, use tar or a grind rim

even someone from Argentina who posts once a year thinks you're an idiot.

I've never gotten a new rim because I ground the old one too much.

Mango
03-31-2007, 01:35 AM
atleast your thinking, i like this idea a little more than people trying to wire 2 mags together for a better brake. Tires will wear like everything else on the bike. It would be cool if you had good brake pads on a ground rim with two decent brake pads on the tire, get a booster... YOU CAN PUSH IT FURTHER! :naughty:

chronic
03-31-2007, 03:48 AM
Guys, girls, keep on saying your say. I'll report back later with my results. For all I know this thread will still be going in a couple months and I can make you eat your shorts. Some of you anyways..

Has anyone ever told you to fuck off in person before?

If they have, I hope you didn't say eat my shorts. I'm just curious you know.

Anyway, You dont need to report back your results. As A your fucking pads are done as it is, and soon you'll be braking with metal pad backing into your tire. And secondly, you will need a new rear tire if you do this wonderful idea of yours for a couple months.

You idea makes about as much sense as twin turbo charging a honda civic...although the civic makes more sense because eventually it does something good.

manimal
03-31-2007, 04:49 AM
how many people here have actually grinded their rim so many times that they have killed their rims?.......i certainly haven't.....

I have a.. umm..its gotta be at least 4 year old 19" dx32.
tho i havent grinded my try-all rims...
has anyone had experiance with both these rims with grinding?

I guess its possible, but not likely, to grind your rim away, if you're careful it won't happen.. if you're an alcoholic that suddenly became retard strong and tried to grind your rim, you'll chew through it like butter.

I ground my old tryall mod rim alot, the brake surface hardly became an issue, well aside from having to regrind before each ride. even still it didn't seem to get that much thinner. I just started using a DX32, so I can't say for that, but I can imagine that it would last through more grinds (seeing as how it will hold a grind better than the soft butter metal of the tryall).

I'd say its the end of discussion. people grind their rims a considerable amount of time deliberately, and I can't recall seeing in 4 years someone complaining about having wear holes in the brake surface. I have however seen people complain about poorly aligned brakes cutting clean through tires.

metal = hard
rubber = soft

pretty cut and dry!! you'll replace your tire before the rim.

also, what about if you squeeze too hard, aren't you concerned that you'll pop the bead out of the rim? I suppose that could be avoided by spacing, but its just another human error to have to worry about.

one last thing...
http://www.observedtrials.net/album/data/500/dblbrk.JPG
sorry for being an ass, but its late, I'm bored, and this is still being discussed...

edit - I just noticed that your vee's seem to be threaded into a 4bolt boss .. without an adapter?? yes?

KERNAL KLINK
03-31-2007, 08:10 AM
well...i tried it, and for atleast 2 hours it was ok..thats all i rode.
nothing special because my v's alreasy worked great but i did notice a slight difference..
but still a stooooopid idea to run it like that all the time.
unless its raining or something wet its pointless..just get a booster.
not a bad idea for someone not knowing..
but after a few weeks of riding i could deffinitly see the end result being a rat fucked tire..
i like the magnet idea

pan man
03-31-2007, 12:10 PM
It all depends on how much you ride and grind, but you can't deny that eventually you will need to replace your rim because your sidewalls are gone. After all, you are literally shaving off your sidewall everytime you grind. I only grind my rims once every ~2 months, but I know people who grind every week/ two weeks. It has happened before that someone needed to replace their rim.

Kimosabi
03-31-2007, 12:26 PM
uhh, you're wrong. Why do road riders use skinny tires? Less rubber touching the road = less friction.. :nuts:

Funny how everyone is bitching about "wearing out your 70$ tire" when we all wear down our $90 rims by grinding them away...



That is my way of thinking too, everyone grinds their rim.... the rim is the most expensive bit on the wheels!!!!! Man that was a good thought!
Keep the thread running I say, in a few more pages I'll be reporting back!

guumer
03-31-2007, 12:33 PM
.. the rim is the most expensive bit on the wheels!!!!!


umm no its not hub is

brian_E
03-31-2007, 12:36 PM
eturt, firstly, it's F=u*N.

Let me explain this better than you have so far: More surface area doesn't increase friction, because a greater SA would also reduce the pressure (keep the same N). If you increased force as you increased the SA to keep P constant, THEN an increase in SA would increase F (because you are increasing N).

i love how the dumbest threads find the "smartest" people.. or maybe it's vice versa..

Giant1118
03-31-2007, 12:56 PM
no vid no care

qft

i wanna see vid of someone who is actually good try this

Kimosabi
03-31-2007, 12:58 PM
Has anyone ever told you to fuck off in person before?

If they have, I hope you didn't say eat my shorts. I'm just curious you know.

Anyway, You dont need to report back your results. As A your fucking pads are done as it is, and soon you'll be braking with metal pad backing into your tire. And secondly, you will need a new rear tire if you do this wonderful idea of yours for a couple months.

You idea makes about as much sense as twin turbo charging a honda civic...although the civic makes more sense because eventually it does something good.

Ha, I normally tell people to fuck off... I was trying to tell you non-believers to F'off in a nice way. Looks like Chronic here didn't understand that, amazing to think that you even bothered posting a lenghty reply. Must be winding you up quite a bit then? and why should I buy all the expensive stuff for my brake when this setup works? you carry on wasting money on that man, I don't care. If my tire falls apart in a few months then I'll go the same route as everyone else and care!

Kimosabi
03-31-2007, 12:58 PM
umm no its not hub is

ok, could be true!

Kimosabi
03-31-2007, 01:01 PM
qft
i wanna see vid of someone who is actually good try this

Anyone willing to try this to shut the non-believers up once and for all? (for now anyway, he he)..

chronic
03-31-2007, 02:00 PM
... and why should I buy all the expensive stuff for my brake when this setup works? you carry on wasting money on that man, I don't care. If my tire falls apart in a few months then I'll go the same route as everyone else and care!


Yeah, cause a pair of good brake pads costs as much as a tire... Good luck :greddy:

BrettB
03-31-2007, 02:01 PM
I use this rim and these brakes/pads,and i couldnt really ask for better brakes
great modulation and they have never slipped on me

MIKE1968
03-31-2007, 02:18 PM
oi av tried dis wif me maggies and couldn't b arsed to get it 2 work? ne ideas?

Giant1118
03-31-2007, 02:31 PM
Anyone willing to try this to shut the non-believers up once and for all? (for now anyway, he he)..


no....no one will. U know why. Cause their brakes work just fine. Seriously go make 40 bucks and buy yourself some real pads, grind your rim, and save yourself a tire.

MIKE1968
03-31-2007, 02:32 PM
ps if you ride a good amount you spend more on tires a year than in rims. I can get away with using the same rim for 1-2 years while using 3-4 tires or more a year...and I let them get super bald before changing. So one $50 rim or 4 $40 tires...

The Real Twitch
03-31-2007, 02:39 PM
qft

i wanna see vid of someone who is actually good try this

true i think you should film yourself with this set up and show it to us.

eturt9
03-31-2007, 04:28 PM
eturt, firstly, it's F=u*N.

Let me explain this better than you have so far: More surface area doesn't increase friction, because a greater SA would also reduce the pressure (keep the same N). If you increased force as you increased the SA to keep P constant, THEN an increase in SA would increase F (because you are increasing N).

So I was wrong the first time, but don't call me an idiot, and learn how to use proper grammar :hsugh:

I can't say that was explained better but whatever. But yeah, thats right.

Proper grammar?

trauma100
03-31-2007, 08:04 PM
This thread +

http://www.observedtrials.net/vb/attachment.php?attachmentid=4717&stc=1&d=1145300077

http://www.observedtrials.net/vb/attachment.php?attachmentid=4735&stc=1&d=1145385282

http://www.observedtrials.net/vb/attachment.php?attachmentid=4736&stc=1&d=1145385282

= a sad day for all of England

chronic
03-31-2007, 08:10 PM
This thread +

http://www.observedtrials.net/vb/attachment.php?attachmentid=4717&stc=1&d=1145300077

http://www.observedtrials.net/vb/attachment.php?attachmentid=4735&stc=1&d=1145385282

http://www.observedtrials.net/vb/attachment.php?attachmentid=4736&stc=1&d=1145385282

= a sad day for all of England

Wow I didn't see those... Fuck lol

stinkybastard
03-31-2007, 08:29 PM
What this thread is still going?! k everyone this is the interweb, even if kimosabis's tire brake fails, or tire sidewall explodes violently off his rim(which absolutley will happen), you all know hes gonna still claim they work. Any pridefull asshole carrying a thread for 5 fucken pages defending a braking method that would make baby Jesus cry is going to do so. This is the internet, you can make people believe anything.
Btw Im 7ft tall have an 18inch cock and make 500,000 a year:luke: :luke:

KERNAL KLINK
03-31-2007, 08:40 PM
damn you make alot of money...

Giant1118
03-31-2007, 08:44 PM
true i think you should film yourself with this set up and show it to us.

lol
i said someone good

rush
03-31-2007, 09:35 PM
damn you make alot of money...


:werd: Rich asshole.


Big cock too :naughty:

manimal
03-31-2007, 10:04 PM
http://www.voetsek.com/lighter_side/images/man_with_huge_cock.jpg:dunno:

mekanic305
03-31-2007, 11:16 PM
This thread = :rolleyes:...:ugh:...:wtf:...:rant2:...:slap:... :dunno: ...:momaru:...:rofl:

bike_me
04-01-2007, 01:16 AM
"Never argue with an idiot. If someone walks by, they may not be able to tell which is the idiot."

Keith Courage
04-01-2007, 03:34 AM
Yea this thread is ghey. I'd lock it, had I the ability.

manimal
04-01-2007, 05:09 AM
anyone seen the latest south park?

how about that local sports team? you know, the one that plays against the rival douchbags 2 towns over?

Kimosabi
04-01-2007, 05:21 AM
Why don't you all stick to the subject of this thread, got nothing contructive to say then leave it. What's with all the negative vibes man? who's gonna make a vid? I'll do it in a month or 2...

hophopsnap
04-01-2007, 05:52 AM
month or two?

read my signature, but replace "most people that post on this website" with "you". and replace "asian bike parts" with "your brakepads".


assholes

Keith Courage
04-01-2007, 12:45 PM
month or two?

read my signature, but replace "most people that post on this website" with "you". and replace "asian bike parts" with "your brakepads".


assholes
:rofl:

Good times.

netto
04-01-2007, 01:39 PM
so i actually tried this on a mountain bike with shitty ass flexy vee brakes. while it made a slight improvement to the shitty brakes, it was no where near my trials set up.

doesnt work for trials. end of thread

decline
04-01-2007, 03:44 PM
so i actually tried this on a mountain bike with shitty ass flexy vee brakes. while it made a slight improvement to the shitty brakes, it was no where near my trials set up.

doesnt work for trials. end of thread


thank you:h5:

KMT
04-01-2007, 03:51 PM
edit - I just noticed that your vee's seem to be threaded into a 4bolt boss .. without an adapter?? yes?


It's possible:
http://img515.imageshack.us/img515/258/goed009to9.jpg


gay thread btw

Kimosabi
04-01-2007, 04:30 PM
so i actually tried this on a mountain bike with shitty ass flexy vee brakes. while it made a slight improvement to the shitty brakes, it was no where near my trials set up.
doesnt work for trials. end of thread


Hahahaha, at least you tried it! Well what do you know, there's an improvement.. (even if it is to some shitty ass flexy V's on a normal MTB)! so now think of how your Trials setup will be improved with this idea..

Anyway it was fun reading all the pisstaking on this here thread I started, you folks are just such a loving bunch aren't ya.

decline
04-01-2007, 06:46 PM
kimosabi you arnt trying to make friends are you. we have no control over our ability to flame you. we would stop if you just stopped but you keep fueling the fire....where is an admin. to come by and lock this thread?

rush
04-01-2007, 07:53 PM
I dont lock threads needlessly. This website is about discussion.

However, it is now necessary to lock this thread.

Thank you linesmen, thank you ball-boys.