WILWOOD GP310 BRAKE CALIPER, 2000-2011 HARLEY, DAVIDSON, FRONT, LEFT, WILWOOD, BRAKE CALIPER, PART # 120-7739-BK Fits the front of 2000 to 2011 Harley Davidson's that have 11 1/2" diameter rotors. Fits .250" Thick rotors Features Four 1.25" Pistons Built around a 4-piston, high performance powerhouse, this billet aluminum caliper brings distinctive, bolt-on styling. Black Powder Coating