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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 08-12-07, 05:36 AM   #1
brendan rocks
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assistance needed.

ok, so, here's the set up:

sugino messenger chainring
sugino R2 cranks
average shimano bb
izumi chain
phil wood cog

so why do i have this grinding sound - not to mention this grinding feel - when i'm pedalling? i'm at a loss. cleaned and greased / lubed everything, chainline - though not exactly perfect - is pretty damn close, and i've tried a bunch of different chain tensions. it's a mystery. anyone wanna try to solve it?
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Old 08-12-07, 05:45 AM   #2
abeabe
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are they all new?
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Old 08-12-07, 05:55 AM   #3
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all bar the bb, which is only about 6 months old
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Old 08-12-07, 06:16 AM   #4
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Chainline not straight? Chain too tight? But you said they are fine. Stiff links?

Last edited by lvleph; 08-12-07 at 06:22 AM.
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Old 08-12-07, 06:33 AM   #5
chase.
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if the chain is disengaging/engaging the ring or cog at even a slight angle you'll feel some roughness. Not sure if that qualifies as 'grinding' though.
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Old 08-12-07, 06:36 AM   #6
deadly downtube
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happens to me when my chain is too tight.. play with chain tension mebbe?
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Old 08-12-07, 11:31 AM   #7
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Take the chain off. Spin the cranks. Spin the wheel. Any grinding? If not, then it's obviously a chain thing. As someone suggested, see if changing the tension helps. Also, did you make sure to apply lube to wear the rollers contact the plates? (Usually people just toss lube onto the chain and it ends up there, but the inside of the rollers is actually the place that needs the lubrication)
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