Wilwood Caliper-GP310 Black Rear 1.25in Pistons .25in Disc

With its 1.25-inch pistons, this Wilwood GP310 rear caliper is built for serious stopping power on your Harley-Davidson. Designed specifically for 1984 and newer models, it replaces your stock caliper with a well-built, 4-piston billet aluminum unit that bolts right on. This caliper is intended for use with .25-inch thick discs, ensuring a solid foundation for your braking system.

The billet aluminum construction means this caliper is not only strong but also relatively lightweight, helping to reduce unsprung mass. Its 4-piston design allows for more even pressure distribution across the brake pad, leading to improved braking performance and feel. The black finish gives it a clean, custom look that complements many Harley-Davidson styles. It's designed to fit models with a standard 3.50-inch mount spacing, making installation straightforward for most riders.

This caliper is a great choice if you're looking to upgrade your motorcycle's braking capabilities. It's a direct bolt-on part for many Harley-Davidson models, though it's important to confirm your specific model's mount spacing, as Springer and 4-speed FL models have different requirements.