or electric bike

and change a valve extender during a flat repair

Weight: 325g

Automotive-grade 750 hour salt spray hardware

Giant's inner tubes are made from high-quality

Shimano ULTEGRA-R8000 Hollowtech-II 175mm 2-Speed 34-50T Crankset giant or electric bikeThe all new SHIMANO ULTEGRA R8000 series crank features lightweight crankarms, a hollow outer chainring, and a wider gear pitch for increased clearance on modern road frames. It is available with 53 39, 52 36, 50 34, and 46 36T chainrings and 165, 170, 172. 5, and 175mm crank arm lengths. Lightweight crankarm design optimized for power transfer efficiency Minimal weight without sacrificing stiffness HOLLOWTECH II Rider tuned gear performance through