SRAM S200 Eagle 12sp Rear Derailleur. Features: Confidently mix and match across the Eagle Drivetrain Ecosystem with compatibility for both 500 and 520% Eagle cassettes Type 3 clutch for confident and quiet descending Sealed cartridge pulley bearings Backwards compatible, works with both 10-50t and 10-52t cassettes Specs: Model: S200 Mount: 10x1 Standard Speed: 12 Cage: Long Retention: Clutch Min Max: 10/52t Capacity: 42t Weight: - Color: Black