ZTTO CNC MTB Flywheel 11 Speed Aluminum Alloy+Steel Bike Cassette Cycling Replacement Part - 11-36T
It is made of high tensile Steel+Aluminum Alloy and made by the technology of quench-temper hardening.so it has higher strength, durability and has extreme resistance to abrasion. The strong antioxidation makes it hard to rust to have a long service life
High precision teeth ensure close connection with bicycle hub for smooth rotation and easy maintenance
The hollow design reduces weight and makes your riding easier
Use it to directly replace your old or broken flywheel. A wonderful accessory for most mountain bikes. Easy to install