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weird pedalling problems. i have no clue.

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weird pedalling problems. i have no clue.

Old 11-23-07, 02:44 PM
  #1  
smitty22
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weird pedalling problems. i have no clue.

so i have a brand new fuji roubaix that i just bought. i took it out on its first ride not too long ago and noticed a weird sensation when i would get out of the saddle for a sprint or to climb. when i would put pressure on the crank, it would feel like it lost grip or tension through the crank, and seemingly fall under my pressure, from roughly 2 o'cock to 3 o'clock if you were gauging it by the right side crank arm. it almost felt like the bike was ghost shifting into a new cog while i was on the power, but when i glanced to the cogset, there was no change in gears whatsoever.

i've never had this happen to me before, is this a crankset problem? or a bottom bracket? i took it to my lbs and said the cranks weren't as tight as they would've liked them to be, and tightend them up, but mentioned they'd replace the crank if needed. could this be a possibility??
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Old 11-23-07, 02:50 PM
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Defective freehub? Sticky freehub pawls?
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Old 11-24-07, 12:55 AM
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Joshua A.C. New
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Sounds to me like a broken or bent tooth, or maybe a stiff link. That is, the chain sounds like it's skipping under load.
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Old 12-10-07, 02:23 AM
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the mind can play strange tricks on us from time to time.
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Old 12-10-07, 03:18 AM
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Does this happen in every gear? Every rotation as you're sprinting, left and right?
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Old 12-10-07, 03:52 AM
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As a former employee of Peformance Bicycles..... never buy a Fuji. EVER. Please?! Much less any other bike they sell. They build them like monkeys anyways.

The RC I never had problems with. It sounds like a cable tension thing. The Fuji Teams have a chainline issue that will never be figured out apparently. I called them, and never got a response. I'd never buy their product. Best of luck to you.
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Old 12-10-07, 04:55 AM
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Triple check it isn't your crank moving under load.
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Old 12-10-07, 05:02 AM
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Originally Posted by Tapeworm21 View Post
As a former employee of Peformance Bicycles..... never buy a Fuji. EVER. Please?! Much less any other bike they sell. They build them like monkeys anyways.

The RC I never had problems with. It sounds like a cable tension thing. The Fuji Teams have a chainline issue that will never be figured out apparently. I called them, and never got a response. I'd never buy their product. Best of luck to you.
I own a recent model Fuji Sagres, purchased at local Performance shop. It runs great. Tune it myself, keep it in shape, commute with it and have ridden two centuries on it (with a few mods). I'm looking next to replace the wheels with something a little better, but am happy with it as it is now. I think it is unfair and irresponsible to make such a blanket statement.
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Old 12-10-07, 06:05 AM
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Originally Posted by Tapeworm21 View Post
As a former employee of Peformance Bicycles..... never buy a Fuji. EVER. Please?! Much less any other bike they sell. They build them like monkeys anyways.

The RC I never had problems with. It sounds like a cable tension thing. The Fuji Teams have a chainline issue that will never be figured out apparently. I called them, and never got a response. I'd never buy their product. Best of luck to you.

A teammate of mine races a Fuji Roubaix. Came in 2nd in the state point series this year. 2nd last year. First place 2 years ago. Crappy bike?

I don't think so.

Bob
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Old 12-10-07, 06:15 AM
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Originally Posted by Tapeworm21 View Post
As a former employee of Peformance Bicycles..... never buy a Fuji. EVER. Please?! Much less any other bike they sell. They build them like monkeys anyways.
You must have been fired from Performance . . . anyway, I have the exact same bike - - 2006 Fuji Roubaix RC . . . no problems at all.
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Old 12-10-07, 06:23 AM
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Originally Posted by Tapeworm21 View Post
As a former employee of Peformance Bicycles..... never buy a Fuji. EVER. Please?! Much less any other bike they sell. They build them like monkeys anyways.

The RC I never had problems with. It sounds like a cable tension thing. The Fuji Teams have a chainline issue that will never be figured out apparently. I called them, and never got a response. I'd never buy their product. Best of luck to you.
I have two Fujis. The Finest was the first which has thousands of miles on it, in great shaped, and currently on my trainer. Bought a used 2005 Roubaix Pro and it's serving me equally well.
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Old 12-10-07, 07:12 AM
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Maybe you're thinking about it too much. The crank angle you're speaking of is when you generate the least amount of power to the cranks. (Rotor Cranks try to circumvent this issue) Maybe you're just feeling the difference between really hammering down on the crank - at the 3 o'clock or 4 o'clock position - and just moving them to a better mechanical point - at the 12 to 2 o'clock position.

Or, yeah, it could be the freehub body. I would think that the "skipping" would be a little more random if it were a decent freehub body. Or it could be a bent link, but you'd hear a noisy click any time the chain moved past a jockey wheel/cog/chainring.
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Old 12-10-07, 12:24 PM
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I'd check for a stiff link.
Slowly rotate the crank backwards and observe the jockey pulleys on the Rder. Usually, when a stiff link passes through them, you'll see a noticeable "twitch". It's free and quick to check!
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Old 12-10-07, 12:26 PM
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Originally Posted by Bill Kapaun View Post
I'd check for a stiff link.
Slowly rotate the crank backwards and observe the jockey pulleys on the Rder. Usually, when a stiff link passes through them, you'll see a noticeable "twitch". It's free and quick to check!
+1 Start with the simple stuff, especially on a new bike.
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Old 12-10-07, 02:42 PM
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Do you have an indoor trainer or access to one? Stick it on the trainer and see if you can duplicate the issue. Could be number of things. I have found the trainer is valuable for tracking down all kinds of things such as weird noise problems that only happen under load.
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