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crank spinning with wheel in stand

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crank spinning with wheel in stand

Old 03-10-16, 10:36 AM
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flyingcrank
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crank spinning with wheel in stand

the wheels have about 500 miles so break in should not be the issue. it only happens when spinning the wheel very fast. and it doesnt sag when i am coasting during a ride. what im not sure if this is a big enough issue to get nashbar to replace them with a new pair. or if its a so what kinda problem. thanks for any answers.
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Old 03-10-16, 10:43 AM
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Huh?

Mechanical doping is the first thought came to my mind
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Old 03-10-16, 10:52 AM
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lol its not where near turning the pedals under any kind of power
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Old 03-10-16, 11:01 AM
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So the freewheel sticks ever so slightly? You're probably losing valuable watts when coasting.
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Old 03-10-16, 11:21 AM
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Originally Posted by RPK79 View Post
So the freewheel sticks ever so slightly? You're probably losing valuable watts when coasting.
ya it is only able to turn the crank when spun very fast. just wanted to make sure this was not a sign that something was going to go bad,since the wheels only have 500 miles. but if its a so what kinda thing,then I'm fine not worrying about it.
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Old 03-10-16, 11:28 AM
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It's normal; don't worry about it...
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Old 03-10-16, 11:30 AM
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Right, a little friction inside the freehub. Very common.
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Old 03-10-16, 11:36 AM
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Originally Posted by rmfnla View Post
It's normal; don't worry about it...
This ^^^^
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Old 03-10-16, 05:57 PM
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Remove the cassette body, pry out the rubber seal in the rear of the cassette body, and dribble some oil into the cassette body.
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Old 03-11-16, 02:15 AM
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Originally Posted by rmfnla View Post
It's normal; don't worry about it...
This.

It's just a tiny bit of seal drag.
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Old 03-11-16, 05:46 AM
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EDIT -- The following responses explained it: Spinning the rear wheel forward by hand moves the chain and so the cranks turn when normally the cranks don't move.

So this post isn't related to the original question.

Originally Posted by flyingcrank View Post
the wheels have about 500 miles so break in should not be the issue. it only happens when spinning the wheel very fast. and it doesnt sag when i am coasting during a ride. what im not sure if this is a big enough issue to get nashbar to replace them with a new pair. or if its a so what kinda problem. thanks for any answers.
and
Originally Posted by flyingcrank View Post
ya it is only able to turn the crank when spun very fast. just wanted to make sure this was not a sign that something was going to go bad,since the wheels only have 500 miles. but if its a so what kinda thing,then I'm fine not worrying about it.
I'm not sure what you are asking. Is it about the bike bouncing in the repair stand when the wheel is cranked fast?

That's normal. The rim joint opposite the valve is heavier than the rest of the wheel, so it's a little out of balance. But it's not a problem at all when riding. Once, on a newly paved, very smooth downhill, I could barely detect the vibration, but not on normal roads.

~~~~~

The other responses think your question is about the wheel slowing down too fast.

With the rear wheel off the ground, grab the tire and spin the wheel with a moderate pull. It should spin for at least 5 seconds (and usually a lot longer than that.) If it stops within a few seconds, something needs adjusting.

Last edited by rm -rf; 03-11-16 at 09:34 AM.
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Old 03-11-16, 08:00 AM
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Wd-40
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Old 03-11-16, 08:03 AM
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Originally Posted by big chainring View Post
Wd-40
Ditto. Put some on the chain while you have it out.
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Old 03-11-16, 08:23 AM
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Originally Posted by rm -rf View Post
I'm not sure what you are asking.
What he is saying is that when the bike is in the repair stand and he spins the rear wheel very fast the drive train moves as if he's pedaling.
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Old 03-11-16, 08:30 AM
  #15  
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Originally Posted by indyfabz View Post
Originally Posted by rm -rf View Post
I'm not sure what you are asking.
What he is saying is that when the bike is in the repair stand and he spins the rear wheel very fast the drive train moves as if he's pedaling.
Could be FFS, Front Freewheeling System.
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Old 03-11-16, 08:32 AM
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Originally Posted by indyfabz View Post
What he is saying is that when the bike is in the repair stand and he spins the rear wheel very fast the drive train moves as if he's pedaling.
Not to be a stickler, but he didn't say that. You inferred it. I inferred the same thing.
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Old 03-11-16, 08:42 AM
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Originally Posted by RPK79 View Post
So the freewheel sticks ever so slightly? You're probably losing valuable watts when coasting.
This was so perfectly subtle, I think too many people missed it. Well done, sir.
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Old 03-11-16, 09:23 AM
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Originally Posted by RollCNY View Post
Not to be a stickler, but he didn't say that. You inferred it. I inferred the same thing.
Combine the subject line and the second sentence of the post and I think he did say that, although not as clearly as he could have.
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Old 03-11-16, 12:58 PM
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Originally Posted by big chainring View Post
Wd-40
Originally Posted by shoota View Post
Ditto. Put some on the chain while you have it out.
WD40 is not a great chain lube...

(Sorry, everyone)
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Old 03-11-16, 01:01 PM
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Originally Posted by big chainring View Post
Could be FFS, Front Freewheeling System.
You're on a roll lol.

Originally Posted by DrIsotope View Post
This was so perfectly subtle, I think too many people missed it. Well done, sir.
It wasn't lost on me, beautiful.

Originally Posted by rmfnla View Post
WD40 is not a great chain lube...

(Sorry, everyone)
and you're not even new here...
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Old 03-11-16, 01:09 PM
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Originally Posted by shoota View Post
and you're not even new here...
I know; no excuse...
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Old 03-11-16, 01:10 PM
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Originally Posted by rmfnla View Post
I know; no excuse...
Just don't let it happen again lol
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Old 03-12-16, 06:42 AM
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Look at the bright side. It could be your BB bearings have very little drag.
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Old 03-12-16, 04:18 PM
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Originally Posted by RPK79 View Post
So the freewheel sticks ever so slightly? You're probably losing valuable watts when coasting.
That's why I remove seals and pawls from my son's wheels. Better coasting makes you faster.
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Old 03-12-16, 08:30 PM
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I removed Seals and Crofts from my son's wheels. It was a bad scene man.
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