SRAM X5 Rear Derailleur - 9 Speed Medium Cage Black ModelNumber=K0558 EvoCurve is a short and

EvoCurve is a short and shallow compact drop bar with an oversized comfortable top section

8 Lock Style Keyless Diameter 13 Cable Included No

2-sided entry / superior mud shedding

Thin 16mm depth and concave body design

Crafted with durable and light weight aluminum

SRAM X5 Rear Derailleur - 9 Speed Medium Cage Black ModelNumber=K0558 EvoCurve is a short andSRAM X5 Rear Derailleur 9 Speed Medium Cage Black. Affordable and reliable derailleur is great for repairs and upgrades. TECH SPECS Cage Length Medium Chain Wrap Capacity (teeth) 37 Color Black Drivetrain Speeds 9 Largest Cog 34 Rear Der Shifter Compatibility SRAM 1: 1 Rear Derailleur Mount Type 10x1 Standard Weight 290