For sale is my wired Cyclops PowerTap SL power measurement system for a road bike join. It includes the Mavic rim with double butted 14-15-14 DT Swiss spokes. Power measurement is done in the rear hub. Power, speed, cadence, distance and heart rate are measured with the system. The freehub is set up for a Campagnolo 8-10 speed freehub, but can be changed out for other manufacturers. Cash or PayPal.