SRAM X3 Rear Derailleur - 789 Speed Long Cage Black Model Name-Thorn Resistant Schrader Valve Kraton rubber construction with dual-density

Kraton rubber construction with dual-density gel construction and ergonomic shape

Full height center knobs openly spaced for loose conditions

6/40mm) Offset 44mm Travel 110mm Spring Type DebonAir+ Brake Mount Disc Only (PM-160) Dropout 15x110mm Boost Weight - Color Black

Forged AL6061-T6 alloy construction

ERC endurance specific carbon rims newly optimized for enhanced handling and crosswind stability

SRAM X3 Rear Derailleur - 789 Speed Long Cage Black Model Name-Thorn Resistant Schrader Valve Kraton rubber construction with dual-densityAffordable and reliable derailleur is great for repairs and upgrades. Will work with 7 8 or 9 speed cassettes depending on the shifter used 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 272 Chain Wrap Capacity (teeth) 45 Cage Length Long