Check my grind and my setup

[10kman]

Just put her together. Should be interesting, I've been away from any serious trialsin' for a while.

I think my grind counts as a "light" grind, and if I continue using that type, what pad is best for that setup (assuming V-brakes as pictured)? I held off buying real pads until I found out exactly what I needed. Shockingly, the standard ones are working great, but will wear down fast I'm sure.

Also - with the whole bike picture, anything obviously "wrong" with the setup? It felt right when I was building it up. Too high, too low? Don't factor in parts selection, just setup.

Thanks in advance - can't wait to take advantage of this warm east coast weather we are having.

10k

[KMT]

its dangerous to use pads like this in the rear brake :ugh:

[goose]

Those little pad retainer pins could shear off or bend when you land with your wheel locked. Get pads that are all once piece soon, or you could have a ride ruined in the near future due to pad failure. Any pad that doesn't have the re-usable insert/backing setup will last longer than what you've got. OR you could superglue the inserts into the backings.

[10kman]

Like I said, the pads are temporary until I get new ones, based on my grinding technique. I am not doing anthing that will cause me danger right now, just getting my balance on the bike and dialing in some coordination.

Good to note though, do not use these pads for "real" riding.

[epock7]

The retaining pins for the pads will break. I've tried everything. I've even used parts of hardened allen keys as pins and they still break. If you get some 2 part epoxy and coat the pin and back of the pads, they will stay. I did it to my kool stops and they stayed put for 6 months until they were worn out.

edit: wow I'm slow

[eastside]

I have a few friends running Spanish Fly's and CRV's with luck on a gring similar to yours.

[hophopsnap]

what tensioner?

[toyota200x]

Nice looking bike but I would recomend putting a small seat on it. :)

You could get some 90a polyurithane(sp) and put it in those backings. It should work pretty good.

[the@bourd]

The frame looks short. However if you are a street rider, there is no problem.

[sethman]

yeah i got spanish flys on my alibongo and they work great without grind. they're kinda hard to find though. try hbtrials.com, hugo has about 30 pairs of them in a box. good luck.

[zorak]

yeah that seat stub looks like it would really hurt if you landed on it.:eek:
i would really recomend getting a small seat. or if you dont want a seat cut that stem.

[sethman]

you can cut the stem off and put a headset cap on it. thats what i did, no seapage.

[TheGhost]

Where on the east-coast do you live?
What parts your currently running?
-Colin B

[10kman]

The tensioner is a cheapo one from Nashbar. I used a zip tie to get the tension just how I wanted it, it was a bit too firm without it. If I actually do something to snap it, then I'll upgrade. I built this bike almost entirely out of things I had sitting around.

Parts are pretty run of the mill - Jack Flash frame, SD7 rear brake with SD7 levers, Shimano carbon booster, BB7 front disc brake, crazy light front wheel that I had sitting around from my XC rig, Hussefelt cranks with bash, ZuZu pedals, King headset, Kore stem, Azonic DH bars, slimwall grips, spare tires I had sitting around, and that's about it.

I think the seatpost stem that is leftover would hurt as well, but I'm not ready to cut the frame and totally kill resale value. If I get to the point that I'm noticing it in my way, I'll either cut it off, or just get a true trials specific frame. It's for mainly street/urban trials, so the shortness works for me.

Having a hard time tracking down new pads, plaz's are out of stock everywhere I have tried so far. Not a big deal just yet. If I could figure out a way to make my own pads I'd be golden, may be a good thing to mess with over the winter.

Pics of the tensioner, and more parts below. I'm in Eastern PA as well.

[perkins]

Looks nice, but you really need to get a seat... it will make the bike look so much nicer. It's for mainly street/urban trials ...you might want to think about getting a new stem... Kore's are known for breaking. I wouldn't even trust one on an xc bike...

[KMT]

i don't understand that tensioner
why is it good to pull it upwards with the blue thing? O_o

[10kman]

If I don't use the zip tie (blue thing), the tensioner puts too much tension on the chain, almost to the point of binding the drivetrain. By lifting it up, it releases the tension a bit, and to hold it there, just use a zip tie.

I had to do the same thing on my commuter bike, but on another bike, I did not, so they are hit or miss. But, considering it was all of 4.99, I don't mind.

[coznkos]

That looks like a fun bike, I'd put a seat on it, but apart from that, looks pretty good. Planet X makes a set of trials bars, and a cool looking 70mm stem, but that might be too short for you...
I run a jackflash as a jump bike, but I was thinking about getting another one to do a similar setup as yours, because I find myself doing trials on it more than anything...
I don't know if planet X still makes a trials seat, but they did at one point. Planet X has a pretty cool seat now, the Uranus... aptly named.

[10kman]

I'd like to try to find a seat/plug if I did do a saddle, it's a 27.2 seatpost diameter. It's hard to find a saddle like that though, and I don't want to run a post AND a seat, too much excess weight.

[coznkos]

If you could find a Planet X one, it would work, but it has been a while since I'v seen one. Maybe ebay, but I'm not sold on that entirely. I was looking at the photos, and was wondering how that brake booster was working. Looks solid...

[10kman]

That booster is awesome, it looks really massive too. There used to be one made by Ionic, called the "Major Stiffy", which was also good, but you can't find those anymore. I had two of them when I first tried out trials, and they were super stiff. Made from aluminum, and looked real clean.

I like the Shimano Carbon though much better, they float around ebay once in a while, and go for a premium price of 40 bucks or so with hardware.

[JuiceBoX]

if you did want a seat and had to go with a seat post go with the macneil oversized seatpost and a macneil capital seat together they weigh like 1 pound or something rediculous like that i have one and its crazy light

[BrettB]

what exactly is the geo on the jack flash?
do all years have the same geo?
sweet bike btw...looks really fun

[sethman]

yeah i dont get how the tensioner could put out that kind of tension, you should loosen it, mine did the same thing if it was snug tight but i ran it alittle loos and it doesnt come out.

[10kman]

Geometry on my frame looks about like this -

Top Tube 569mm

Head Angle 72
Seat Angle 73.5
BB Drop 10mm
Chain Stay 425mm
Seat Tube 320mm

X switched geometries at some point, this is a newer one, can take up to a 5" suspension fork and still keep your head angle decent.

The tensioner is a cheapo, who knows why it's pulling so much tension, but the zip tie works fine.

Here's how I had the frame built up before the trials build - 7" 888RC on the front, Pink Chris King parts all around, Hayes 8", it was pretty nuts but fun as heck to ride. I had no justification for keeping it built like that though, so I parted it out and swapped over to the trials build, and saved some cash too.

[Kibble Fat]

The old build looks very original. I like

[carnagr]

I feel for your headtube...

[psyber_0ptix]

what spindle length you running on bottom bracket to get a strait chainline for the rear freewheel?

[10kman]

113mm for the spindle. It looks straight enough, and is very quiet. I use the sound as a guide more than anything else.

[bEavoLa]

never seen a JackFlash built up as a trials rig before...but i LIKE IT!

geo doesn't look a million miles different to the Zebdi either - there's something about the ol' PlanetX Zebdis and JF's that just look so awesome in white! if you're ever thinking about selling that bike, drop me a line - i only need frame/forks/cranks.

cheers

[psyber_0ptix]

unfortunately the 05 frames have a 16.75" chainstay (i measured mine today)

and they feel a bit heavier (compared to the 03 frame)

the 03 pX JF was VERY FUN

[Mordax]

the 03 pX JF was VERY FUN

:werd:

i have one of those tiny PX trials seats that used to be on my jackflash. dunno if you'd want it. gotta be better than that buttplug you got going right now :momaru: