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Help me get my fixed gear cog off!

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Help me get my fixed gear cog off!

Old 11-02-07, 10:08 PM
  #1  
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Help me get my fixed gear cog off!

I have a lock ring spanner wrench and a chain whip, but I don't know which way to turn the chainwhip to get the 18t cog I have on my bike.

The lockring comes off in a clock-wise manner. Does the cog unloosen in hte same direction?

If it's still stubborn, I'll guess I have to go to my LBS where they have a vise, but I'd like to learn how to do stuff like this on my own if possible!
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Old 11-02-07, 10:28 PM
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The cog loosens counter-clockwise, opposite of the lockring.
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Old 11-02-07, 10:35 PM
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Originally Posted by Moose View Post
The cog loosens counter-clockwise, opposite of the lockring.
Ok thanks, but the thing is stubborn (broke my chain whip!). Suggestions?
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Old 11-02-07, 10:48 PM
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Take it to a bike shop, they'll remove it for only a small fee.

Or fix that whip and keep trying, it's all about leverage and patience.

I place the wheel on the ground, cog facing away from my shins. Then I wind up the whip so the handle parallel to the ground and then push down with all my might, or enough might to loosen the cog, whichever comes first.
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Old 11-02-07, 11:14 PM
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Should one apply grease to the threading so it comes off easier?
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Old 11-02-07, 11:24 PM
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Originally Posted by Sincitycycler View Post
Should one apply grease to the threading so it comes off easier?
As with most metal on metal fittings on the bike: YES, ALWAYS. As the lock ring is secured tight (also with a little grease), the cog won't loosen while riding. That's why the lockring is reverse-threaded, so if the cog starts to screw loose (counter-clockwise), it will turn the lockring, which tightens it.
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Old 11-02-07, 11:25 PM
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Originally Posted by Sincitycycler View Post
I have a lock ring spanner wrench and a chain whip, but I don't know which way to turn the chainwhip to get the 18t cog I have on my bike.

The lockring comes off in a clock-wise manner. Does the cog unloosen in hte same direction?

If it's still stubborn, I'll guess I have to go to my LBS where they have a vise, but I'd like to learn how to do stuff like this on my own if possible!
Wouldn't unloosen mean tighten? Just kidding

I had a friend who wanted to be safe and used a ton of LocTite. It took a while to get the cog off.
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Old 11-03-07, 06:00 AM
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Put the wheel back on the bike and stomp the pedals backwards.
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Old 11-03-07, 09:14 AM
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Use reverse rotafix.
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Old 11-03-07, 09:18 AM
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Originally Posted by operator View Post
Use reverse rotafix.
Yes, follow this, but backwards:

http://204.73.203.34/fisso/eng/schpignone.htm
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Old 11-03-07, 09:21 AM
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Originally Posted by operator View Post
Use reverse rotafix.
Strange it took to post #9 to get to the right answer.

And here's the link to the legendary procedure:

http://204.73.203.34/fisso/eng/schpignone.htm
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Old 11-03-07, 09:36 AM
  #12  
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Originally Posted by wroomwroomoops View Post
Strange it took to post #9 to get to the right answer.

And here's the link to the legendary procedure:

http://204.73.203.34/fisso/eng/schpignone.htm
I was wondering the same thing.....
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Old 11-03-07, 10:35 AM
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Originally Posted by wroomwroomoops View Post
Strange it took to post #9 to get to the right answer.

And here's the link to the legendary procedure:

http://204.73.203.34/fisso/eng/schpignone.htm
Didn't post #2 answer the question to post #1?

Posts #8 and #9 were answers to #3.

Post #6 answered the question in post #5.

So, I suppose the only useless posts were #7, #11, and #13.

Thanks for playing.

...and thanks for the heads up on the rotafix technique. I've never seen that before. I guess now I know as well if I don't have the correct tools on hand.
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Old 11-03-07, 10:39 AM
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but post #3 countered post #2......so that put the OP back in square 1.
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Old 11-03-07, 10:50 AM
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But it did answer the question. After the chain whip was broken, that allowed for the inclusion of an alternate method.
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Old 11-03-07, 10:57 AM
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Nevermind...I'm sorry for being pedantic this morning. I've been reading threads in the VC forum wayyy too much for my own good and that spilled out here. Thanks again enlightening me to the rotafix method. I'm going out to ride now and clear my head.
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Old 11-03-07, 11:23 AM
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Originally Posted by urban_assault View Post
Didn't post #2 answer the question to post #1?

Posts #8 and #9 were answers to #3.

Post #6 answered the question in post #5.

So, I suppose the only useless posts were #7, #11, and #13.

Thanks for playing.

...and thanks for the heads up on the rotafix technique. I've never seen that before. I guess now I know as well if I don't have the correct tools on hand.
Post #11 contained the link to the method (rotafix), so it's not useless. And you're not pedantic, just inexact.

Of course, if "rotafix" is all you need, without actually knowing what the procedure is, then yeah, post #11 is "useless"?! I guess.
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Old 11-03-07, 05:11 PM
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Rotafix works, but it is not the end-all/be-all procedure for removing/installing a track cog. A good mechanic can break any cog loose with a good chainwhip and proper leverage applied and there's less risk of scratching up your frame than with the rotafix method.
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Old 11-03-07, 08:05 PM
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Originally Posted by ruppster View Post
Put the wheel back on the bike and stomp the pedals backwards.
Without the lockring, right? Brilliant!! I'll give it a shot tomorrow
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Old 11-03-07, 08:07 PM
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Wtf is rotafix?
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Old 11-03-07, 08:17 PM
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Your question has been answered about 5 times by now. Check the links from people's posts ;-)
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Old 11-03-07, 09:42 PM
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Sin, Any luck yet?
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Old 11-04-07, 09:16 AM
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He's just trolling now. End the ****ing thread.
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Old 11-04-07, 02:53 PM
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Originally Posted by operator View Post
He's just trolling now. End the ****ing thread.
He might be trolling, but no need to lock the thread. the Mechanics forum does not lock threads, there's no such (bad) tradition, and no need to start one now - especially when you're not 100% sure if the OP is trolling, or just being a bit disoriented - or just making an innocent joke.

relax!
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Old 11-04-07, 02:56 PM
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Yeah, but this is no ordinary OP.....
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