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Product details
This black right-front GP310 is configured for the supported 2000–2007 Harley-Davidson fork mounting arrangement. The later 2.72-inch centers distinguish it from the earlier GP310 front version. Four 1.25-inch stainless pistons apply the pads, and an M10 x 1.50 inlet connects the hydraulic line. Bill Wood founded Wilwood Engineering in 1977; the company is based in Camarillo, California. Wilwood designs and manufactures disc brake systems and components, from calipers and brake rotors to master cylinders, valves, fittings and brake lines, for motorsport, street-performance and specialized applications; selection depends on the complete brake system.
Technical Details
- Manufacturer part number: 120-7738-BK
- Caliper type: GP310 Motorcycle Front (2000-2007)
- Construction: Billet Aluminium
- Finish: Black Powder Coat
- Piston bores: 1.25 / 1.25 inches
- Piston type: Stainless
- Piston count: 4
- Published piston area: 2.46 square inches
- Dust boots: No
- Nominal rotor width: 0.25 inch
- Rotor thickness limits: 0.18–0.25 inches
- Rotor diameter limits: 11.00–11.50 inches
- Mounting style: Lug
- Mounting side: Right Hand
- Mounting centers: 2.72 inches
- Mount height: 2.18 inch
- Hydraulic inlet thread: M10 x 1.50
- Required pad shape: 6208
- Published pad area: 3.65 square inches
- Published pad volume: 0.63 cubic inches
- Manufacturer-listed component weight: 2.0 lb
- Supplied brake components: Individual GP310 caliper with brake pads
Fitment & Compatibility
Check fork-leg geometry and right-hand orientation with the exact motorcycle. Wilwood excludes Springer and four-speed FL models from the stated front applications. Rotor diameter, width and wheel clearance must meet this part’s dimensions, and the required fluid type should be confirmed from the complete motorcycle brake system.
PMB Performance brings over 20 years of brake and parts experience to selection questions. Send the existing caliper reference and brake-package details for help checking compatibility.
Brake-pad warning: Cancer and Reproductive Harm. www.P65Warnings.ca.gov. This warning applies to the brake pads.
