zhi/echo are the thuuper

[AgrAde]

i have a zhi Z2, a 128mm wide bb, monty isis cranks, echo fixed rear hub (the SS one).

the frame flexes so hard the crank hits my chainstay when i pedalkick. i'm going to space out my bb so i get about 3mm more clearance, but that's three more mm my chainline is going to be out because it sucks anyway because echo are gay and have no fucking idea how to build anything that works, so they put the spline bit way too close to the centre of the hub, so even when you have a 68mm frame with a ffw that's almost touching your bb, it's STILL NOT FUCKING CLOSE ENOUGH TO HAVE A STRAIGHT CHAINLINE.

[kieldp]

i have a zhi Z2, a 128mm wide bb, monty isis cranks, echo fixed rear hub (the SS one).

I have the same set-up except with Adamant cranks and have absolutely no problems...

[stocktrials]

dylan has a Z1 and had problems with the crank hitting the rear brake

[AgrAde]

http://www.observedtrials.net/otn3/bike%20001.JPG

least it looks purdy.

ok one sec
edit: looks like i can't change the title. monty are gay too.

[netto]

i too have problems with flex on my z2. it makes me sad

[AgrAde]

solved the problem? how much crank/chainstay clearance do you need? i have about 5mm and it hit on a 3 foot gap, very little kick in the pedals.

[netto]

i dont have problems with my cranks hitting the chain stay. it just flexes a lot and makes me mad. the whole bike shakes when i land sidehops on awkward surfaces. im pretty sure the frame is going to break soon.

MAYBE I NEED AN ANT?

[AgrAde]

MEBBE EYE DEW TWo! oh well it was cheap.

[RomanC]

I think if you got different cranks which have more bend to them and are not straight, this might solve the clearance issue. Although such frame flex is pretty gay.

[Edge]

I've been riding the Z1 for a couple months now without any problems. Try All BB, Truvative cranks and a King hub. Did they change something on the Z2? This bike is the most solid build I've had yet. Very stiff, no flexing.

[AgrAde]

they're a completely different design - you can see by the picture it has the far-forward seat tube thing like the coustellier frame, except it's missing both the extra tubes that save the coust frame from being a flexy mess.

[Edge]

That sucks. I wonder why they changed it?

[AgrAde]

they were released at pretty much the same time, just different frames. my mate bought a z1 for the same price. i hope he has trouble with his brakes :rofl:

[Thom_H]

They never changed it, the Z2 isn't the new model of the Z1, they are just completely different models.

[va_tick]

Yeah I've noticed my Z1 has some flex compared to my old BT's and a couple of Koxx's tried..........but its still with in expectations for what you pay.

[Cryo-Cube]

speaking of crap
saw a 12 year old 68lb kid brake a 180€ Monty fork on a sidehop. Now here comes the really fucked up part.
It was his fourth fork since he got the bike, the one that snapped when i was there was 2 months old or something.
nice quality control :nuts:

[dylan]

dylan has a Z1 and had problems with the crank hitting the rear brake

yeah, my frame is heaps flexy. after i put a booster on it, it was noticeably better though. my middleburns have about <1mm clearance on my hs33's with full pads, and if the bb gets lose at all the cranks hit the brakes, and now ive got some solid chunks out of them. also, i noticed wthout a boosters it really did flex heaps, and just riding down the road the torque from one pedal stroke caused the frame to flex enough to make the pad his the rim.

[AgrAde]

jeebus. solved the crank clearance problem (my 128mm bb is spaced out about 4mm further towards chainside than it should be :ugh:) but the skipping chain is pissing me off even more with the worse chainline. i suspect the echo cog i have on there is a pile of shit, but i'm putting a derailer on so i can get more chain wrap. going to find a way to tension the hell out of it, will go from there.

i hate my bike already, it's like a new puppy that went and shit all over the carpet.

[WhiteRavenKS]

my tensile cranks dont clear my brakes very well. so i clip them all the time when i pedal hard at things. i have a pair of echo cranks i could put on that would solve the clearance issues. but it sure would be nice if stuff just fit where it was supposed to...

[dengenerate]

:luke: my control is sweet. i'll have to look at how much clearance i have. i'm running echo cranks on an echo frame. perhaps the mismatching of parts is the bigger problem.

oh man i can't wait to catch the heat for the mismatching statement. a lot of the stuff on mine is not echo, for the record.

[WhiteRavenKS]

yeah, i had a hard time using hardware store bolts instead of echo/zhi/wtfever bolts... that must be it.

echo branks have a ton of offset from the spindle to the pedal. some cranks dont. maybe shape has more to do with it than brand?

[dengenerate]

yeah, i hadn't really considered it before reading this thread, but i'd be interested to see the fab drawings for different cranks. i'm sure the geometries vary more than i'd have initially thought.

oh, i should have mentioned this too... i have the 116mm rear hub spacing. i imagine that frees up lots of room. :nuts:

[netto]

i think the skipping is caused by your chain not having enough wrap on the rear cog

[AgrAde]

yeah, it is. pity it's as short as it goes. i built a derailer out of three old manky-ass ones that my mate grabbed from the parts bin at the LBS... the chainline is crap so it sounds like a concrete mixer because the plastic jockey wheels are right on the edge of the chain, but it's not skipping.

i did my first sidehop in... two months. it was beautiful.

[Eisbein]

i am riding the new z2 the silver one with disc mounts. cranks are shimano hollowtech 1 with a 121mm bb octalink. it isnt that flexy to me. okay when i compare it with an echo control or a pitbull yeah then i would say its a bit flexy. maybe the changed some thing to the new version...

[AgrAde]

had a good ride on it today. apart from the offset rear triangle and the fact that it feels like a wet noodle, it's bloody fun to ride.

yay

[toxinr]

maybe Yao Zhi and Deng Qiang dun like each other...so their parts won't fit with each other...:ban:

[trialsin usa]

Some cranks have higher Q (offset of spindle to pedal) than others. Monty 231 cranks are very straight as are a number of Echo models. Tryall cranks have alot of offset, and tend not to have nearly as many chainline/crank chainstay clearance issues.

[AgrAde]

yeah. i measured some things, my rear triangle is straight but the bb itself is oh so slightly angled. i have a 128/73 bb that has 7.5mm worth of spacers on the drive side, and it still scrapes the tape that i've put there to cover the frame.

that's equivilent to having what, a 133mm wide bb?

[Keith Courage]

That fuckin sucks.
Now I know what my next frame won't be.

[Eisbein]

hmm that wasnt an issue to me. i can use it with a 122/68mm BB and shimano cranks

[Giant1118]

yeah. i measured some things, my rear triangle is straight but the bb itself is oh so slightly angled. i have a 128/73 bb that has 7.5mm worth of spacers on the drive side, and it still scrapes the tape that i've put there to cover the frame.

that's equivilent to having what, a 133mm wide bb?

no cuz the spindel is still 128. instead of 128/73 yer at 128/80 ish

[WhiteRavenKS]

Some cranks have higher Q (offset of spindle to pedal) than others. Monty 231 cranks are very straight as are a number of Echo models. Tryall cranks have alot of offset, and tend not to have nearly as many chainline/crank chainstay clearance issues.

solution. :Wavey:

[Elan]

my tensiles hit every rotation. oh wells.

[AgrAde]

no cuz the spindel is still 128. instead of 128/73 yer at 128/80 ish
err, i mean the distance from the crank to the frame on the drive side is equivilent to what i would have if i had a symmetrically spaced BB that had the same clearance as that on both sides.

jeez :riaa: