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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 12-20-08, 04:23 PM   #1
geeknerd99
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Rollers to diagnose bike setup?

I've caught a lot of flak already for running a 60mm -10deg stem and risers, with people claiming they're really unstable, etc. etc.

My rollers finally came in today, and good lord! My bike IS really, really twitchy on the rollers. But it definitely doesn't feel like its that much on the road.

Discuss.
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Old 12-20-08, 04:30 PM   #2
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Should sell the rollers, then sell the bike, then take that money and buy a bike that fits properly.
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Old 12-20-08, 04:41 PM   #3
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all bikes are twitchy on rollers


that's the point...to teach you how to be smooth
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Old 12-20-08, 06:16 PM   #4
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i wonder if they make rollers to help you not make retärded threads...
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Old 12-21-08, 12:13 AM   #5
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Should sell the rollers, then sell the bike, then take that money and buy a bike that fits properly.
.....Or just experiment with a stem that's "right" for the bike? 5'10", 56cm frame.

I don't do the bike fitting at the shop for nothing, you know. I just built my bike with the pieces from a 49cm frame and didn't bother to put a longer stem on because I like the upright position in traffic.

I'll put on a 110 -10 tomorrow and see what happens.
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Old 12-21-08, 12:53 AM   #6
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all bikes are twitchy on rollers


that's the point...to teach you how to be smooth

+1

if your bike feels fine to you on the road, then ride it that way...
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Old 12-21-08, 03:35 AM   #7
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i wonder if they make rollers to help you not make retärded threads...
rickrollers
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Old 12-21-08, 03:59 PM   #8
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.

I'll put on a 110 -10 tomorrow and see what happens.
a 5cm increase? I guarantee you that something WILL happen. You shouldn't be changing anything by 5cm on a bike you already ride.
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Old 12-21-08, 04:34 PM   #9
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.....Or just experiment with a stem that's "right" for the bike? 5'10", 56cm frame.

I don't do the bike fitting at the shop for nothing, you know. I just built my bike with the pieces from a 49cm frame and didn't bother to put a longer stem on because I like the upright position in traffic.

I'll put on a 110 -10 tomorrow and see what happens.
if a 60 mm stem is comfortable, your bike doesn't fit you duder
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Old 12-21-08, 05:05 PM   #10
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Discuss.
rollers diagnose form issues, not fit issues.

go to a competent shop, get your bike fit, ride rollers until you can do it no handed, post video.

now you're for real.
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Old 12-21-08, 06:53 PM   #11
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rollers diagnose form issues, not fit issues.

go to a competent shop, get your bike fit, ride rollers until you can do it no handed, post video.

now you're for real.
So what you're saying is:

Go to work, and play around with it myself until it "fits".

I've ridden the bike with a 140mm -10 (which was nucking futs) and drops. I'd ride it like that on the track, but the decreased visibility in traffic wasn't worth it. And I've mostly ridden it with the 60 with both bullhorns and risers. It all depends on what ride qualities I'm aiming for. I have leg extension and knee angle all perfectly dialed in, along with saddle tilt and fore-aft position. And all of those did change slightly and were corrected when I played around with the 140mm stem.



Now tell me again that this bike (minus the joke HED3 and plus a few minor part tweaks) doesn't fit me.
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Old 12-21-08, 08:08 PM   #12
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ok, so you know *all* about fit and you've got it dialed...that much is apparent now.

proceed to step 2 in my previous post...form.

rollers are a *****, but it's not the bike's fault.

Last edited by dookie; 12-21-08 at 08:58 PM.
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Old 12-21-08, 08:45 PM   #13
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20 miles tonight definitely helped a lot.

Although admittedly, 60mm does feel a bit short after a while. Experimentation to follow!
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Old 12-22-08, 11:01 AM   #14
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Now tell me again that this bike (minus the joke HED3 and plus a few minor part tweaks) doesn't fit me.
Quote:
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Although admittedly, 60mm does feel a bit short after a while. Experimentation to follow!
You said it yourself

Also

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Originally Posted by geeknerd99 View Post
I've ridden the bike with a 140mm -10 (which was nucking futs) and drops. I'd ride it like that on the track, but the decreased visibility in traffic wasn't worth it.
Blacksburg has a population of 39,000 people, how heavy could the traffic be?

Visibility is good but these bikes aren't meant to be ridden sitting bolt upright. Ride risers if that's your style but at least get a stem extension that doesn't put 100% of your weight on your ass. Take some time to get used to the more aggressive posture your bike is meant for and you'll probably find you actually like it once you get past the adjustment from what you're probably used to.
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Old 12-22-08, 12:42 PM   #15
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Blacksburg has a population of 39,000 people, how heavy could the traffic be?

Visibility is good but these bikes aren't meant to be ridden sitting bolt upright. Ride risers if that's your style but at least get a stem extension that doesn't put 100% of your weight on your ass. Take some time to get used to the more aggressive posture your bike is meant for and you'll probably find you actually like it once you get past the adjustment from what you're probably used to.
I go to Virginia Tech. Try riding in 9AM class change traffic across campus. It gets pretty hairy.

I'm not quite completely upright, but definitely after an extended ride I start to feel somewhat.... cramped in my current cockpit setup. That, and the lack of hand positions starts to suck.

I guess it all eventually boils down to context. Shorter, casual point A to point B rides are great with the short stem and risers setup, but roadie-esque training rides (rollers or road) probably should be done with a legit "road" setup.
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Old 12-22-08, 12:58 PM   #16
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I think you said you were 5'10"? If so a 100mm stem will be perfect for you. I have the SE Lager as well, the crap stem that came with it I think was 60mm, just way to small. I went then to 90mm, still didnt feel right, then to 100mm, perfect! I have been measured anyways and 100mm is suitable for me.
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Old 12-22-08, 05:42 PM   #17
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never mind torso / arm length, flexibility, top tube length, saddle fore/aft, etc...100 is purrrfect.
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Old 12-22-08, 05:44 PM   #18
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I'm ending this once and for all.

I brought home the Salsa Size-O-Matic from work and a set of drops. This ought to be fun.
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