Fixie cog slip/skip
11-11-20 | 04:53 PM
#1
Thread Starter
Newbie
Joined: Nov 2020
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Fixie cog slip/skip
I have a fixie with flip-flop hub, I usually ride with the singlespeed side, but once I want to use in fixed gear, but when I apply back pressure on the pedal, or pulling up with the strap, like trying to skid, the cog slip or skipping some teeth, I can't describe well how it feels. The cog and the lockring was tightened up, but the problem isn't gone.
Any ideas?
Any ideas?
11-11-20 | 10:03 PM
#3
Clark W. Griswold
Joined: Mar 2014
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From: ,location, location
Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), R+M Supercharger2 Rohloff, Habanero Ti 26
If you don't skid your undies, don't skid your bike. If you do skid your undies, learn how to wipe.
Some of those really cheap fixed gears don't take well to much use and abuse like that. I might pull it apart, grease it properly and torque it down right or have your local shop take a look.
Some of those really cheap fixed gears don't take well to much use and abuse like that. I might pull it apart, grease it properly and torque it down right or have your local shop take a look.
11-12-20 | 08:48 AM
#4
Senior Member
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From: Paradise, TX
Bikes: Soma Pescadero, Surly Pugsly, Salsa Fargo, State Warhawk, Gravity SS, Schwinn Klunker
You cog and lockring are not tight enough. If you do one good skid the way it is now, you will strip the threads off the lockring.
11-13-20 | 01:17 PM
#5
Senior Member
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From: Traveling through time, will return last week.
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i would remove the cog and locking and inspect for any damage. if everything looks ok clean, grease and reinstall. next put front wheel of bike into corner, hop on and stomp down on pedal to really tighten down the cog, then tighten down the lockring. if it slips after that just ted shred or buy an e-bike.
11-14-20 | 01:23 PM
#6
Old fart
Joined: Nov 2004
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From: Appleton WI
Bikes: Several, mostly not name brands.
If you don't have a chain whip to properly tighten the sprocket, try the rotafix method:
https://en.wikipedia.org/wiki/Rotafix
More likely, strip the lockring threads on the hub, which, unfortunately, is even more expensive to fix. It's also possible that the OP is experiencing this issue because the hub is already damaged. Remove the lockring and sprocket and carefully examine the threads.
IMO, skid stops should not be your default method of stopping your bike in the first place.
https://en.wikipedia.org/wiki/Rotafix
If you do one good skid the way it is now, you will strip the threads off the lockring.
IMO, skid stops should not be your default method of stopping your bike in the first place.
11-14-20 | 04:15 PM
#7
I stripped the sprocket threads of the rear hub of my first track bike, in 1964 (I was 13 and didn't know that you shouldn't install a British-threaded sprocket on a French-threaded hub). The mechanic in the local bike shop wrapped the hub in aluminum foil and threaded the same sprocket back on. Worked fine.
I've had that story in my holster for a long, long time, waiting for a thread like this to pop up.
I've had that story in my holster for a long, long time, waiting for a thread like this to pop up.
11-30-20 | 04:21 PM
#9
Newbie
Joined: Jun 2019
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Not all the cogs are same
I once had the same issue after changing the cog. Tightening did not work. I was thinking to buy a new hub. Then i remembered there was a thin shim between the cog and the lockring. Solved it in a few minutes.
