Originally Posted by
kjohnnytarr
Why not put that cog on a little axle, and mount the axle to a clamp on the chainstay? You wouldn't have to worry about it falling out, and you could adjust tension by sliding the clamp forwards and backwards.
Cuz d00d... then it wouldn't be ghetto. I mean... why not just buy a chain tensioner? Or run gears? there... I said it.