ocscully
Member
I'm writing the email right now and will report back with my findings. What aspect of my terrain should I concern myself with when choosing a 13 or 14 tooth driver?
Thanks for your continued help. You've been more than generous.
The smaller the driver that you use the greater your reduction and there for the lower final gear you will have, meaning better hill climbing lower top speed. The bigger driver will add top end but you will have to pedal more to get the bike going and to climb hills. The GEBE Site indicates a 10% change for each tooth added or subtracted. Read the information on the drivers at the link above, its all explained there. Ask GEBE for a recommendation based on the motor you plan to use.
ocscully