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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 08-13-08, 06:05 PM   #1
elTwitcho
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Stuck cog. Suggestions?

Hey guys. Trying to change the cog on my bike and I'm at a bit of an impasse. I can't for the life of me get my cog off. Originally I used my chainwip, wouldn't even come close to budging. Then I rotaxifed backwards (unrotafix I guess, haha) and even that won't loosen it. I'm incredibly frustrated at this point and would love to hear any and all suggestions.

For the backwards rotafixing I was turning the wheel clockwise when viewed from the drive side. I'm 99% positive that's the correct direction, but at this point I'm worried that if I push it any further I'm going to strip my hub.

Any help?

EDIT: Oh and yes I took the lockring off.

Last edited by elTwitcho; 08-13-08 at 06:08 PM.
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Old 08-13-08, 06:11 PM   #2
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little bit of PB blaster?
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Old 08-13-08, 06:11 PM   #3
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the cog threads the opposite way of the lock ring.
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Old 08-13-08, 06:31 PM   #4
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Got it. Just needed to have my roomate twist as well. Both of us twisting the wheel got the cog loose.
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Old 08-13-08, 11:25 PM   #5
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i know this would make a few people cry but for future reference if its not a $2000 bike just take off the lockring put the wheel back on hold onto something and pedal backwards with all your might. It should come off.
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Old 08-15-08, 07:54 PM   #6
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have you tried that ulock through the spider method?
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Old 08-15-08, 08:19 PM   #7
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blast some wd-40 or whatever penetrator you like, let it sit a while, wrap a chainwhip around the cog, hit the end of the chainwhip with a hammer a few times until it loosens. the impact should free it up but just make sure you hit in a straight direction
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Old 08-15-08, 10:22 PM   #8
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Quote:
Originally Posted by jlin View Post
have you tried that ulock through the spider method?
can you explain the advantage of that over rotafixing (besides dinging up your crank/ulock vs bb (which can be negated with a rag...(yay overlong parenthetical statements)))?




Op, glad you solved your problems, now grease your threads.
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Old 08-16-08, 03:32 AM   #9
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Originally Posted by JBD View Post
can you explain the advantage of that over rotafixing (besides dinging up your crank/ulock vs bb (which can be negated with a rag...(yay overlong parenthetical statements)))?




Op, glad you solved your problems, now grease your threads.
holy **** lisp on bikeforums.
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Old 08-16-08, 01:29 PM   #10
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Originally Posted by JBD View Post
can you explain the advantage of that over rotafixing (besides dinging up your crank/ulock vs bb (which can be negated with a rag...(yay overlong parenthetical statements)))?




Op, glad you solved your problems, now grease your threads.
Yeah it was assembled with loc-tite. I re-assembled with Phil grease, I'm thinking I probably won't be having this problem again
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Old 08-16-08, 02:05 PM   #11
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Why do people loctite cogs on non-suicide hubs? I never understood this.
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Old 08-17-08, 06:39 PM   #12
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holy **** lisp on bikeforums.
lisp? where?
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Old 08-17-08, 07:02 PM   #13
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For future reference, I once had a severely stuck cog. I broke a chainwhip try to get it loose (with help from my buddy). I skipped and skidded down a hill trying to get it off, but no dice. The thing that got it though was a vice. Put a piece chain around the cog, clamp it down and crank that mutha off.

Also, conversely, pulling wheelies will get your cog on there real tight.
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Old 08-17-08, 07:18 PM   #14
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Quote:
Originally Posted by jlin View Post
have you tried that ulock through the spider method?
Ulock through the spider method has to be the worst idea I have ever heard of. It looks like a good way to **** up your chainstays.

Use a rag and rotafix.
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Old 08-18-08, 12:38 PM   #15
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holy **** lisp on bikeforums.
(defun lol () (format t "lol") (lol))
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