I work at a Bianchi dealer and am considering getting a single speed. I was looking at their 2 models: the S.A.S.S and the G.U.S.S. The main difference is that the S.A.S.S is a fully rigid steel bike while the G.U.S.S is an aluminum front suspended bike. Also, the G.U.S.S has the white industries eno hub and freewheel while theWhat I am worried about with the S.A.S.S is if I end up not liking the fully rigid frame. Will installing a carbon seatpost and using 2.5 inch tires inflated to like 35 pounds take the sting off? How do you rigid riders deal with the bumps?