4-Piston Caliper - Rear - Contrast Cut* 08-17 Softail Feature differential bore pistons that apply a different force at both the leading edge and the trailing edge of the pads to ensure superior braking, Dual-disc applications require the separate purchase of a left and right front caliper, Include brake pads, bleeder screw and 3/8"-24 banjo bolt, Made in the U.S.A., Calipers listed for 00-03 XL models will fit 04-13 XL models if used with a 9/16" bore master cylinder., Will not fit FXD, FXR, XL models with spoke wheels.