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Real experience
We test before we recommend.
PRODUCT DESCRIPTION
Product details
GP310 Motorcycle Front Disc Brake (1984-1999)
Wilwood’s GP310 motorcycle disc brake caliper has been designed and engineered for use on 1984-1999 Harley-Davidson® motorcycles. Built around a powerful 4-piston, high-performance motor, this billet aluminum caliper offers distinctive styling and easy installation: direct leg-mount calipers are available for all single and dual disc models (except Springer and 4-speed FL models), as well as the 1983 XR 1000. Additional features include highly polished bleed screws and hardware, an exclusive anti-rattle pad clip, and brake pads engineered to operate in the widest range of temperatures and environments, utilizing our industry-leading stainless steel rotor-compatible formulation. id="MainContent_lblPistType" class="Gray11B">Stainless Steel
Rotor Dimensions
| Rotor Width (in) | 0.25 |
| Rotor Diameter (in) | 11.50 |
Pad Dimensions
| Pad Area (in²) | 3.65 |
| Pad Volume (in³) | 0.63 |
Service Rating & Material
| Material | Billet Aluminum |
| Weight (lbs) | 2.0 |
Colors & Finish
| Color | Polished |
| Finish | Polished |
Mounting
| Mount Center (in) | 3.44 |
| Mount Position | |
| Mount Side | Left |
| Mount Type | Lug |
Specifications
Rotor Compatibility
| Rotor Width (in) | 0.25 | ||
| Max Rotor Width (in) | 0.25 | ||
| Min Rotor Width (in) | 0.18 | ||
| Max Rotor Diameter (in) |
| Min Rotor Diameter (in) |
11.00 |
|
Brake Pad Specifications
| Brake Pad Type 1 | 6208 |
| Brake Pad Type 2 | N-A |
| Brake Pad Type 3 | N-A |
| Total Pad Area (in²) | 3.65 |
| Total Pad Volume (in³) | 0.63 |
| Mounting |
Piston
Piston Specifications| Piston Bore 1 (in) | 1.25 |
| Piston Bore 2 (in) | 1.25 |
| Piston Bore 3 (in) | |
| Total Piston Area (in²) | 2.46 |
Mounting Specifications
| Mount Type | Lug |
| Mount Side | Left |
| Mount Center (in) | 3.44 |
| Mount Hole Size (in) | |
| Mount Height (in) | 2.33 |
| Inlet Thread Size | 3/8-24 |
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Experts by your side
Over 10 years in the automotive world.
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Each reference designed for competition.
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