anyone mess with e the stock gearing ??
changing the stock upper gear from a 20-T or changing the bottom from a
40-T and of course changing the chain from a 68-L ??
any luck with this and or advantages??
is there really a need to make these changes??
changing the stock upper gear from a 20-T or changing the bottom from a
40-T and of course changing the chain from a 68-L ??
any luck with this and or advantages??
is there really a need to make these changes??