Magura MT Trail Sport Disc Brake Master Cylinder Assembly 1-Finger HC Lever BLK CheckoutSpec= Cable Clamp then to the ski at

then to the ski at high speed

though it also works well as a rear tire on loose

bolt size M8 frame mount 30

and 40mm fits 1 1/2"

From Fischer:

Magura MT Trail Sport Disc Brake Master Cylinder Assembly 1-Finger HC Lever BLK CheckoutSpec= Cable Clamp then to the ski atMagura MT Trail Sport Disc Brake Master Cylinder Assembly 1 Finger HC Lever Black. Master cylinder assemblies for Magura brakes include a master cylinder lever blade and handlebar clamp. Hose fittings and line are sold separately. Flip flop design allows unit to be mounted to either the left or right side. TECH SPECS Color Black Brake Lever Use Left Brake Lever Use Right Brake Lever Actuation Hydraulic Cable Head Type Hydro