I have Kestrel KM40 Airfoil with dura ace 9 speed drive train. Possibly some HED covers. Seen a set on Craigs List for 100 a piece. The lay of the land was kind of mixed. No real big hills. I have Rolf wheels on it already and happy with them but trying to gain some more speed. I have been a body builder for 10 years so I train hard and I want to be able to hold 25-26 miles an hour for 10 miles. I have eight months to gain two miles an hour, have strong legs and a lot of will.. LOL