Campagnolo Super Record Wireless Crankset - 172.5mm 12-Speed 45/29t Campy 121/88 Asym BCD Ultra Torque Spindle Carbon ModelNumber=K4052 5 / 584 Rim External

5 / 584 Rim External Width 34

With UltraTrac mode

Crank Arm Length 175mm Crank Spindle Diameter 28

}Full Speed Ahead Gradient Modular 1x Crankset - 165mm Fits Shimano and SRAM 11/12-Speed Drivetrains 30mm BB392EVO Spindle Black

The KMC e101 eBike chain is designed for single speed bikes such as BMX fixed gear or track and is rated for use with an eBike motor

Campagnolo Super Record Wireless Crankset - 172.5mm 12-Speed 45/29t Campy 121/88 Asym BCD Ultra Torque Spindle Carbon ModelNumber=K4052 5 / 584 Rim ExternalCampagnolo Super Record Wireless Crankset 172. 5mm 12 Speed 45 29t Campy 121 88 Asym BCD Ultra Torque Spindle Carbon. The Campagnolo Super Record Wireless 12x2 Speed crankset features the iconic Campagnolo design with visible carbon fiber for a crankset conceived to deliver maximum performance. The Super Record Wireless crankset has a lighter hollow structure and uses the Ultra Torque locking system with a titanium axle to transfer to the transmission