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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 08-26-07, 04:31 AM   #1
JamadianSparrow
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Is it possible to do...

Hi all,

I'm 7,000 mi. from my tools, too dang far downhill(6 mi) from the bike shop and w/out a car. I'm also too irritated and cheap to buy ANOTHER chainwhip and impatient to wait for one thru the mail by internet purchase.

 Can I remove a cassette from a freehub without a chainwhip, using only a lockring removal tool? I remember reading somewhere of a homebrew method of imitating a chainwhip using the chain on the  bike or a length of another for this. This is probably something from bikelore many years ago.

 Thanks 
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Old 08-26-07, 04:50 AM   #2
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no.
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Old 08-26-07, 05:23 AM   #3
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I have been up all night and my reasoning skills are shot, but you may be able to rotofix (rotafix?) it off. I know it can be done on a fixed gear, but am having trouble thinking through the implications of a freewheel. Wouldn't hurt to search for more info on it though.
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Old 08-26-07, 06:19 AM   #4
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Try using an old piece of chain and a visegrip. Good luck.
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Old 08-26-07, 07:01 AM   #5
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I've done it before. Wrap a chain around one of the cogs so that the chain is on the ground on the forward side of the free wheel (direction of forward rotation), make sure you've got a few inches of chain on the ground. Lean the assembly with chain side out against a wall or something like that, put the cassette removal tool in place, step on the part of the chain that is on the ground, and proceed to remove the cassette. I got this idea from Utahmountainbiking.com. He says:

"If you don't have a chain whip, just use a section of chain to immobilize the freewheel. I just take an old broken chain, drape it over the top of the big cog, then stand on the other end with [your] foot. Works great!"

Eventhough I normally use a chain whip, this fix works great in a bind.
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Old 08-26-07, 07:50 AM   #6
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Quote:
Originally Posted by Retro Grouch View Post
Try using an old piece of chain and a visegrip. Good luck.
+1 Jury rig something with an old piece of chain
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Old 08-26-07, 08:17 AM   #7
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Here is the rotafix method.

http://204.73.203.34/fisso/eng/schpignone.htm

It should work since you can reverse the process to secure the cog/freewheel from either direction of rotation. Make sure you protect the bottom bracket shell from the chain with a rag.
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Old 08-26-07, 08:29 AM   #8
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+1 Jury rig something with an old piece of chain
old chain piece + 2x4 + 1 nail = hillbilly chainwhip
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Old 08-26-07, 08:34 AM   #9
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When I needed to change cogs I just used an old chain. It never occurred to me that it may not be possible, so I just approached it logically and it worked just fine.

I put the splined remover in a vice, wrapped the chain around the cogs, put the wheel into the remover and grabbed the chain and spokes together in a rag and turned.
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