Originally Posted by
Nagrom_
It's California. It has everything.... 50 miles where you don't gain a foot. Rolling hills. 12% Mountains.
I'd personally go with a 15t cog on one side, and a 19t freewheel on the other side (assuming you have brakes).
They wouldn't let me enter my bike without at least one brake. It is not a freewheel, I'm dead set on doing fixed without SS to challenge myself.