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

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

DirectLine internal cable routing

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