MAHLE SmartBike Systems X20 Freewheel Set - SRAM XDR Steel Model=Trek Thru-Shaft Rebuild Kit Where others see a stone

Where others see a stone that’s broken climbers see a line of opportunity

The dual density cap on the knee distributes forces over a greater area during major impacts

DT Aero Comp straight pull spokes with DT ProLock Squorx ProHead aluminum nipples

The Panaracer RiBMo ProTite folding tire All Contact tread shape has smooth and predictable transition from center to side elongated sidewall surface reduces treadcuts and the ProTite Shield protects the center and sidewall of the tire

Color Black Rings 46/30 Number of Chainrings Double Crank Length (mm) 175 Crank Intended Use Gravel Drivetrain Speeds 11 Drivetrain Speeds 12 Weight 720 BB Included No Pedal Spindle 9/16" Spindle Interface Type 386 EVO Chainring BCD Direct Mount FSA Chainring BCD 90 Chainline/Hub Compatibility 135/142 Road Disc Hubs < 415 mm Chainstay Defined Color Black

MAHLE SmartBike Systems X20 Freewheel Set - SRAM XDR Steel Model=Trek Thru-Shaft Rebuild Kit Where others see a stoneMAHLE SmartBike Systems X20 Freewheel Set SRAM XDR Steel. Replacement freehub bodies for Mahle X20 ebike motors. Mounting nuts included