Ive been riding fixie for 2 years now, started as commute/fun, still is commute/fun but ive been getting pretty fast and a friend is introducing me into velo training... im about to put together a new bike and i noticed that some pursuit's have a 650cc in the front and no one i know could really tell me why, is it just aerodynamics or something else?
p.s. not thinking about getting such a set up, just wanting to learn!
thnx for the attention,
gui