Mini Bike Hydraulic Brake Caliper Bracket Fits: Mega Moto 80/105 Mini Bikes Mega Moto E1000 Mini Bikes Doodle Bug Mini Bikes Details: Caliper Bracket for Mini Bike Hydraulic Brake System Mounting Holes: 2" Center to Center This is the steel bracket only User will need to provide a 1/2" Spacer and Hardware to connect to Caliper Meant for a 12mm Axle Overall Dimensions: Approx. 3.434" x 3.75"