The SRAM Rival 1 Rear Derailleur is a durable and precise 1x-specific derailleur designed for gravel, cyclocross, and road riding. Featuring X-HORIZON™ technology, it maintains consistent chain tension and eliminates ghost shifting, ensuring smooth and reliable performance across rough terrain. The ROLLER BEARING CLUTCH™ reduces chain slap for a quieter, more controlled ride. Compatible with up to a 42T cassette, this long-cage derailleur is ideal for riders seeking a wide gear range with the simplicity of a 1x drivetrain. Used vgc New lower pulley wheels A few marks from use