SRAM X4 Rear Derailleur - 789 Speed Long Cage Black Derailleur Hanger DYC - Dynamic Compounding formulated

DYC - Dynamic Compounding formulated for on-road applications with an emphasis on durability

The evolution of traditional toe clips for a safe and comfortable ride

3 mph (15 km/h) Approx

6000 series alloy cups and materials

Engineered for E-Bikes

SRAM X4 Rear Derailleur - 789 Speed Long Cage Black Derailleur Hanger DYC - Dynamic Compounding formulatedAffordable and reliable derailleur is great for repairs and upgrades. Compatible with 7 8 and 9 speed systems 1: 1 shifter to derailleur actuation ratio for precise light action indexing Largest Cog 34 Color Black Rear Der Shifter Compatibility SRAM 1: 1 Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 9 Weight 280 Chain Wrap Capacity (teeth) 45 Cage Length Long