Designed for extreme braking conditions. Bolton 4- and 6-piston calipers that mount directly to the stock slider tubes without brackets on all models from 1984 thru 1999 (except custom front forks and rear applications). Suitable for 11.5" to 13.0" (13" with adapter brackets only) discs measuring .200" to .225"-thick. Available clear-anodized, polished or black powder coated. RST TÜV-approved High-Performance 2-, 4- and 6-piston calipers are fabricated from high-grade billet aluminum. Cotter pins, bleeder valves, pistons and all bolts are made of stainless steel. Banjo bolts are made of aluminum. They are pressure-tested to 150 bar. 3/8"-24 UNF thread is used for bleeder valves and banjo bolts. Bracket kits are available for most Harley-Davidson models.
4-Piston Calipers Front Left/Rear Right, Polished