SRAM X4 Rear Derailleur - 789 Speed Long Cage Black Water Bottle Cages Deeper and coarser Plus structure

Deeper and coarser Plus structure

5mm top cover = 16mm total stack

5mm Speed 12 Crank Spindle Diameter 28

CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older Helmet Style Road Maximum Head Circumference 58 Defined Color Black

7 and 8 speed systems

SRAM X4 Rear Derailleur - 789 Speed Long Cage Black Water Bottle Cages Deeper and coarser Plus structureSRAM X4 Rear Derailleur 789 Speed Long Cage Black. Affordable 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 TECH SPECS Largest Cog 34 Color Black Rear Der Shifter Compatibility SRAM 1: 1 Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 7 Drivetrain Speeds 8 Drivetrain Speeds 9 Weight 280 Chain Wrap Capacity