Originally Posted by
data
is there a very noticable difference in how hard it is to pedal between the sizes. I'm thinking of moving from a 170 to a 160 because my feet are huge and hit the front wheel.
That will only buy you an extra 5 mm of clearance. This will probably not solve your toe overlap issues, and it will probably mess up your bike's ergonomics. You should just learn to live with toe overlap like most peoople who ride a track bike; it doesn't cost any money.
