MAHLE SmartBike Systems X20 Freewheel Set - SRAM XDR Steel Model=Trek Thru-Shaft Rebuild Kit Unidirectional carbon fiber crank arms

Unidirectional carbon fiber crank arms titanium axle and aluminum chainrings

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

DirectLine internal cable routing

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

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

MAHLE SmartBike Systems X20 Freewheel Set - SRAM XDR Steel Model=Trek Thru-Shaft Rebuild Kit Unidirectional carbon fiber crank armsMAHLE SmartBike Systems X20 Freewheel Set SRAM XDR Steel. Replacement freehub bodies for Mahle X20 ebike motors. Mounting nuts included