SRAM X4 Rear Derailleur - 789 Speed Long Cage Black CheckoutTitle=Muc-Off V2 Tubeless Valve Kit - Blue Nordic - Construction - heel:

Nordic - Construction - heel: Carbon injected heel counter

Pair SRAM Model ID: AC-Hoods-Hydraulic-A1

} Dual-row flanged bearings press directly into 41mm ID smooth bore bottom bracket shells

Tire Diameter/ISO 27

SRAM X4 Rear Derailleur - 789 Speed Long Cage Black CheckoutTitle=Muc-Off V2 Tubeless Valve Kit - Blue Nordic - Construction - heel:SRAM 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