ZTTO Steel Bike 9-42T Flywheel 11 Speed Bicycle Cassette Replacement Part for SRAM XD

• Made of high tensile steel, it has higher strength, longer durability and has extreme resistance to abrasion
• 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. Easy to install

Specification:

• Material: steel
• Teeth ratio: 9-42T
• Speed: 11 speed
• Compatibility: for SRAM XD