Registered Forum User
Big Twin
Posts: 1,710
Join Date: Aug 2002
Location: Worthing Sussex
Mood: happy bike passed MOT
if i read correctly you are changing the standard 14 tooth front sprocket for a 13 ??? this is not really a good idea as a 13 tooth sprocket will place more stress on the chain (something to do with the angle and pitch of the chain i think) best to up 1 or 2 up on the back