question about cogs
 

how much trouble will i run into if you use a 3/32 cog on my fixie with a 1/8 chain?

None. It's done all the time, though usually with a 3/32" chainring and 1/8" rear sprocket. Presumably narrower sprockets will wear faster but it's not like you'll likely notice.

actually, 3/32 chain ring and 1/8 rear cog is what im doin right now. i should have been more specific. if i instal the back cog i'll have 3/32 front and back with a 1/8 chain running on them. will that cause me any trouble?

Again, no, I've run that setup with no issues.

sweet. thanks dude

Still no issues, though whe it comes time to replace the chain, you might as well go to 3/32"

ya that was my plan

Hi,

Go with a new chain with a new rear cog, unless your chain is relatively new.
If you don't you'll just rapidly wear the rear cog to the same state as the chain.

rgds, sreten.

Dudette actually, but no problem, it's nice when we get an easy question on here!

that I do know. thanks all the same though. it's a pretty knew chain so it should be all good. i had just bought a new chain and bottom bracket and after installing them at my homies place i was rummaging through his parts bin and found the cog. I was already planning on pickin up a 15 so i figured as long as it wont be an issue i might as well save myself a lil loot.

anyway thanks all. cheers.

1/8" is 4/32" after all.. that 1/32" aint much ..

Full Bushing Chains are longer Wearing, in single speed drivetrains, but finding any in 3/32" these days, is rare.