The SRAM X01 rear derailleur in Black/Red runs 1x11 gearing with X-HORIZON geometry and a roller-bearing clutch for fast, precise, quiet trail shifting. Premium 1x11 trail shifting with clutch chain control — genuine SRAM, brand new. Will it fit? Medium-cage 11-speed derailleur for SRAM 1x11 mountain drivetrains with up to a 42T cassette (32T capacity). 1x only; mounts to a standard 10×1 hanger. Not for 2x or 12-speed Eagle. Key Specifications Brand SRAM Series X01 Model RD-X01-A1 MPN RD-X01-A1 UPC 710845764189 Type Rear Derailleur Speeds 11-Speed Drivetrain 1x11 Mountain Cage Medium Max Sprocket 42T Capacity 32T Design X-HORIZON, Type 2.1 Roller Bearing Clutch Weight 252 g (8.9 oz) Color Black/Red Country of Origin Taiwan Condition Brand new — original SRAM retail packaging Technology Highlights ✓ X-HORIZON design keeps chain gap constant. ✓ Roller Bearing Clutch reduces chain bounce and slap. ✓ Cage Lock simplifies wheel removal and chain installation. ✓ Medium cage for up to 42T 1x range. ✓ X-SYNC pulleys maximize chain control. What's in the Box 1 × SRAM X01 rear derailleur Original SRAM retail packaging Brand new in retail packaging. Ships from Ontario, California (US domestic) · Estimated delivery 3–5 business days · Free 30-day returns.
