SRAM GX Rear Derailleur - 11 Speed Medium Cage Black 2x With Clutch MFPN=31035317046 and less chance of flatting

and less chance of flatting because there is no tube Flat Protection Sidewall TPI 60 Color Black/Dark Tan Defined Color Black ISO Width (mm) 40 ISO Diameter 622 / Road / 29" Tire Intended Use Touring-Hybrid Tire Diameter 700c Tire Bead Folding Labeled Size 700 x 40 Tire Type Tubeless Ready Clincher

EC49/30 Steerer Tube 1-1/8

Mechanical necessities such as a carbon pulley cage ceramic pulley bearings and anodized alloy artfully blend with proprietary electronic advancements to deliver a shifting wonder

} Massive 3" dual-scale (0-30psi

Tubeless ready rims

SRAM GX Rear Derailleur - 11 Speed Medium Cage Black 2x With Clutch MFPN=31035317046 and less chance of flattingGX derailleurs share the key features of higher priced models and are available for 1x11 and 2x11 drive trains. Rear Derailleur Mount Type 10x1 Standard Rear Der Shifter Compatibility SRAM X Actuation Cage Length Medium Drivetrain Speeds 11 Weight 286 Color Black Chain Wrap Capacity (teeth) 46 Largest Cog 42