ZTTO Bicycle transmission kit,Flywheel 10 Speed 11-50T Cassette Flywheel Derailleurs er Bike 1x10 Speed Cassette Flywheel 10 Bike Crankset 11-50T 10 Speed Chain Derailleurs Shifter Mountain Bike kit

Easy to install and use, with nice compatibility, smooth running, make riding easier. Made of premium-quality steel and aluminum alloy, it is sturdy and has nice durability, premium strength, wear-resistant and impact-resistant, not easy to rust. The kit includes a 10-speed cassette flywheel, a 104BCD 170mm crank set, a 10-speed chain, a shifter, a rear derailleur, a center shaft and a hanger extender. It can greatly improve the speed performance of mountain bikes, combining aerodynamics to reduce bike weight and increase riding speed. It can be pre-owned to modify your bike shifting system, perfect as a gift for family, friends, colleagues, cycling enthusiasts, etc.