Originally Posted by
dev0415
ok so my friends cog on his masi keeps slipping...we've tightened it extremely tight every time...his lock ring is fine...we really dont know what it is...he weights 240 lbs he says its too much stress for the cog because he weighs alot...is this true? the tread is not stripped on the hub or on the cog or lock ring...any ideas or suggestions to fix this? thankss
I'd double check that there is an interference between the lockring and the cog. Tighten the cog, then the lockring, then try to unscrew the cog.
Also, double check the hub threads. Is it slipping while backpedalling/accellerating a half turn or so? Or is it slipping-slipping as in if you pedal hard, it slips forward every time?