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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 08-19-08, 03:14 PM   #1
Mikeymk1
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Bought a new wheelset and need help

So..

My Mark V used to be super silent until i got some new wheels. I bought Deep V's and Formulas (of course). Ever since I put them on my rear wheel makes this weird noise. I keep my chain always at around 1/2 to an 1" of play so its not too tight. To top it off, the other night my came off... Luckily I was near the subway. Someone please help me.


Also, my chain gets loose and tight when my crank is in different positions. Someone help!

Noob questions: My chainline looks straight but how do I know if it really is or not?
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Old 08-19-08, 10:13 PM   #2
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"...my chain gets loose and tight when my crank is in different positions..."

Your chain ring is not centered

"...My chainline looks straight but how do I know if it really is or not?.."

Check out sheldonbrown.com - his articles on doing a fixed gear conversion include info on both how to center a chain ring, and he has a whole article on chainline.
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Old 08-19-08, 10:40 PM   #3
fluidworks
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It's not that the chainring isn't centered, but many chainrings aren't perfectly concentric, and will therefore have positions where the chain is tighter and looser.
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Old 03-31-09, 06:16 PM   #4
FSAS/SS/FG
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There is also a possibility that your chainring or cog is bent out of shape. Also, your chain could be stretched or not pulled to correct tension, generally it is a good idea to have a good amount of tension to avoid having your chain come off while riding.
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Old 03-31-09, 09:10 PM   #5
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you might be running too much chain tension.
you shouldn't have any 'tight' spots.

generally you should run your chain just tight enough so it doesn't fall off while riding.
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