Experience smooth and reliable shifting with the SRAM Apex Eagle Rear 12-Speed Derailleur. Designed for both road and mountain biking, this derailleur offers seamless transitions across 12-speed Eagle cassettes. Its 1x-specific chain retention technology ensures your chain stays secure, making it a versatile choice for any cyclist. Features Compatible with 50T and 52T Eagle cassettes Works with 12-speed mechanical Apex and Eagle shifters Designed for use with Eagle chains Roller Bearing Clutch maintains chain tension for consistent shifting X-HORIZON straight parallelogram design prevents ghost shifting and reduces shift force Cage Lock technology allows for quick wheel changes and easy chain installation Specifications Speed (RD): 12s Cable pull ratio: X-actuation Cage (RD): n/a Max tooth: 52 Colour (RD): Black Pulley bearings material: Steel Cage material (RD): Aluminium The SRAM Apex Eagle Rear 12-Speed Derailleur combines the best of road and mountain bike technology, making it an excellent addition to your cycling setup.