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I can't get my cog off.

Old 03-30-06, 11:30 PM
  #1  
DoshKel
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I can't get my cog off.

I'm trying to fix my spoke and I can't get my cog off for some odd reason. I greased it up when I put it on, so I don't know why it won't come off. I've tried some tools that I have like a chainwhip, some screws that I used as leverage to get it off, and some other basic leverage tools... but it wont come off.

Any ideas what is going on?
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Old 03-30-06, 11:32 PM
  #2  
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Reverse rotafix maybe (be careful)? Sometimes I have to put ridiculous leverage on my chain whip
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Old 03-30-06, 11:35 PM
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If you have access to a vise use a couple blocks of wood and put the cog in the vise.
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Old 03-30-06, 11:38 PM
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Originally Posted by Cynikal
If you have access to a vise use a couple blocks of wood and put the cog in the vise.
My LBS has one. I could bring it down and try it. Have you actually attempted to do it that way though?
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Old 03-30-06, 11:42 PM
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I actually have not but I read an email from Sheldon explaining how to do it.
Edit. I went back to orig email and remembered he used old chain. Look below.

"My usual technique for seriously recalcitrant sprockets is to wrap a
length of old chain around 'em, then clamp the two loose ends
together in a bench vise." Sheldon
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Old 03-30-06, 11:45 PM
  #6  
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Oh alright. That makes sense. I'm basically putting a lot of pressure and leverage on it right?

Sounds pretty reasonable. I'll see if it works tomorrow.

Stupid cog
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Old 03-30-06, 11:52 PM
  #7  
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Everything you could ever hope to know:

http://www.bikeforums.net/showthread...ight=Stuck+Cog
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Old 03-30-06, 11:57 PM
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Originally Posted by HereNT
Everything you could ever hope to know:

http://www.bikeforums.net/showthread...ight=Stuck+Cog
Hell yea.

Thank you. Sorry about not searching >.>
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Old 03-31-06, 12:30 AM
  #9  
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It would have been on the first page a couple days ago, if that...
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Old 03-31-06, 12:31 AM
  #10  
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+1 for reverse rota-fix.
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Old 03-31-06, 01:20 AM
  #11  
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Just remember, when using the vice method to remove a stuck cog, which direction you need to turn the wheel ('steer the bus'). Its easy to get it wrong.
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Old 03-31-06, 06:56 AM
  #12  
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Vice and wood blocks .... safer.
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Old 03-31-06, 07:08 AM
  #13  
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use rotafix method.

when facing the bike on the chainring side, you will be turning the wheel clockwise to un-screw the cog.

make sure that you have removed the lockring first.

=)
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Old 03-31-06, 10:41 AM
  #14  
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Be careful using reverse rotafix. You can actually bend your chain stays and screw up your allignment. I am assuming you have a steel frame.
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Old 03-31-06, 12:15 PM
  #15  
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Sounds like a personal problem.

When I can't get my cog off, I usually just try to relax... maybe use a little extra lube...
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Old 03-31-06, 12:19 PM
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How much of a danger will the reverse rotafix method be to my bottom bracket shell?
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Old 03-31-06, 12:21 PM
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Originally Posted by DoshKel
How much of a danger will the reverse rotafix method be to my bottom bracket shell?
Just use lots of lube and go slow the first time. your bottom bracket can take a lot more than you think.
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Old 03-31-06, 12:34 PM
  #18  
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Originally Posted by mattface
Just use lots of lube and go slow the first time. your bottom bracket can take a lot more than you think.
Alright. Thanks .

I'll go down to my LBS and have him help me so that I feel better about doing it.
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Old 03-31-06, 02:56 PM
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Originally Posted by mattface
Just use lots of lube and go slow the first time. your bottom bracket can take a lot more than you think.
I can't tell if this was as tongue-in-cheek as your first comment, Matt...
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Old 03-31-06, 03:42 PM
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Originally Posted by keevohn
I can't tell if this was as tongue-in-cheek as your first comment, Matt...

when i saw this thread title the only thing i could think of was... **** i hope no one beats me to it.
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Old 03-31-06, 05:57 PM
  #21  
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Originally Posted by keevohn
I can't tell if this was as tongue-in-cheek as your first comment, Matt...
Neither could DoshKel apparently
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Old 03-31-06, 10:19 PM
  #22  
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use the vice.. but wrap the cog in motorcycle chain instead of the wood blocks.. you can clamp hard on the chain.. oh .. and when steering the bus.. turn left!
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Old 04-01-06, 12:17 AM
  #23  
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Originally Posted by mattface
Neither could DoshKel apparently


I am extremely gullible as you can see. I don't really like to argue something unless I REALLY now what I am talking about. So in other words... I have no idea what I am doing.

<---- owned.
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