SRAM X5 Rear Derailleur - 9 Speed Long Cage Black Drivetrain Speeds-10 2-piece Caliper has 21mm pistons

2-piece Caliper has 21mm pistons and fixed hose routing

This affordable crankset includes the features that make SRAM 1x road cranks popular: patented X-Sync chainring technology and above-average tire and frame clearance

An X-SYNC 2 chainring offers significantly quieter performance with better mud clearing and extraordinary durability

One oversized spindle to work across every bottom bracket standard

SRAM X5 Rear Derailleur - 9 Speed Long Cage Black Drivetrain Speeds-10 2-piece Caliper has 21mm pistonsSRAM X5 Rear Derailleur 9 Speed Long Cage Black. Affordable and reliable derailleur is great for repairs and upgrades. TECH SPECS Rear Derailleur Mount Type 10x1 Standard Rear Der Shifter Compatibility SRAM 1: 1 Cage Length Long Drivetrain Speeds 9 Weight 299 Color Black Chain Wrap Capacity (teeth) 45 Largest Cog 34