I have an 01 cr-125 and stock gearing is 13/51=3.98 but, I have thinking about going to 12/49 =4.08 this will help bottom end which i like the idea of. My question is I am no chain guru so will I need a longer chain or shorter? What length will I need going to 12/49?
Is there any problems going to a 1 tooth smaller front as like premature slider wear or rubbing on the swingarm?
Thanks
Is there any problems going to a 1 tooth smaller front as like premature slider wear or rubbing on the swingarm?
Thanks