Wilwood right rear GP310 motorcycle sprocket-brake kit: polished caliper, toothed rotor, bracket and mounting pieces laid out
Wilwood polished GP310 right rear motorcycle caliper beside the drilled 48-tooth sprocket rotor, angled assembly view
Wilwood right rear GP310 motorcycle sprocket-brake kit: polished caliper, toothed rotor, bracket and mounting pieces laid out
Wilwood polished GP310 right rear motorcycle caliper beside the drilled 48-tooth sprocket rotor, angled assembly view

Wilwood Rear Right GP310 Motorcycle Sprocket Brake Kit, Polished Caliper, 48-Tooth

SKU: 140-10178-P

$797.83 Sale
Shipping calculated at checkout.

Fitment questions?

Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.

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Product details

This polished Wilwood GP310 package combines the motorcycle's rear drive sprocket and brake rotor in a 48-tooth stainless component, with a right-hand four-piston caliper. It is intended for a custom V-twin installation using the specified five-bolt hub pattern. The wheel, axle and chain alignment must be checked together. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines for motorsport, street-performance, and specialized applications.

Technical Details

  • Manufacturer part number: 140-10178-P
  • Type: GP310 Motorcycle Rear Sprocket Brake Kit
  • Calipers: GP310; 4 pistons; polished.
  • Pad compound: BP-10.
  • Rotors: 9.88-inch diameter × 0.35-inch width; Drilled, Stainless, Micro Polish. Solid, unvented.
  • Package: right-hand GP310 caliper, pads, 48-tooth sprocket rotor and mounting components; check the motorcycle axle and bracket arrangement in DS661.

Fitment & Compatibility

Match the 5 × 3.25-inch sprocket-rotor bolt circle, bracket mounting, axle size and chain line to the instructions. The manufacturer's kit summary gives a 9.94-inch diameter, while its component row gives 9.88 inches; confirm the required diameter with Wilwood before committing to the wheel assembly. Do not infer a particular Harley-Davidson model or year from the shared bolt pattern alone.

PMB Performance has over 20 years of brake-system experience. Contact us with the vehicle and installed hardware details for fitment help.

California Proposition 65 warning — brake pads only: WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.