SRAM X4 Rear Derailleur - 789 Speed Long Cage Black Water Bottle Cages 5mm top cover = 16mm

5mm top cover = 16mm total stack

Custom-molded upper cup lip seal provides additional protection for the upper bearing

This jacket feels and looks great on

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

SRAM X4 Rear Derailleur - 789 Speed Long Cage Black Water Bottle Cages 5mm top cover = 16mmSRAM 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