Geardrive GM12-6 Wide Ratio Cassette 11-52T, 12 Speed, GD2589

• - Massive gear ranges
• - Smooth stage tooth configuration
• - Flow controlled shifting design no more pedaling slips
• - OEM package (This item is exactly as pictured and does not include retail package)
• Contents: 1 pc/pack

Features: - Massive gear ranges - Smooth stage tooth configuration - Flow controlled shifting design no more pedaling slips Specification: - 12-Speed - 11-13-15-18-21-24-28-32-36-40-46-52T Cogs - Surface Finish: 11~40T Nickel plated 46T 52T ED Black - Spider: Double Spider - Cog Material: Steel Black - Hub Compatibility: HG Driver - derailleurs require a longer B-tension screw, you will need to adjust your b-tension screw to allow your derailleur cage to correctly clear the largest sprockets - OEM package (This item is exactly as pictured and does not include retail package) Contents: 1 pc/pack