Highlights

• 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.
• Made of high-quality steel and aluminum alloy, it is sturdy and has nice durability, high strength, wear-resistant and impact-resistant, not easy to rust.
• It can be used to modify your bike shifting system, perfect as a gift for family, friends, colleagues, cycling enthusiasts, etc.
• Easy to install and use, with nice compatibility, smooth running, make riding easier.

Key Attributes

Shipment Information