Shimano Ultegra FC-6650 SL Compact Chainset - 50 / 34t - 170mm Crank Arm Kids Scooters External bearings provide more pedal

External bearings provide more pedal transfer and stability

and traditional all-conditions treads

This 11 Speed Rear Shifter from Shimano features technology influenced by Shimano's high-end models

PowerGlide Chain rings are competition proven with long-lasting finishes

Weight: 1005g

Shimano Ultegra FC-6650 SL Compact Chainset - 50 / 34t - 170mm Crank Arm Kids Scooters External bearings provide more pedalShimano Ultegra FC 6650 SL Compact Chainset 50 34t 170mm Crank Arm Ultegra SL, noticeably visually different to the standard Ultegra and invisibly Technically different. Ice grey in colour and Super Light in nature, SL is here! The most visible change comes with the colour of the crankset, but whats not immediately apparant is the weight loss and performance gain. The performance improvement is largely due to the lighter, stiffer, machined steel