CycleOps Original Powertap Pro Power Meter Hub. Fits 130mm Rear dropout frame. Comes with Mavic Open Pro 32H 700c Clincher Wheel, 9 speed 12-27 Shimano CS-6500 Hyperglide Cassette and 25mm tire. Has CPU Firmware 2.xx (non-coded).  Feel free to contact me with any questions.