Picked this bike up because of Heather's complains about not being able to keep up. After my first ride on it I decided that we should share it (we ride same frame size). Full double butted chromoly Tange infinity tubing, Shimano 600 brakes, Leather covered Italian racing saddle, Shimano 600 derailleurs and a Thun Aero Coronado crank. Heather now has no trouble keeping up. ---Dickson