Fits custom Big Twin right side drive frames, 6 speed, cast finish. The right side drive (RSD) transmission when mounted in a custom RSD frame will allow the use of a super wide rear tire without offsetting the engine. Includes a chrome plated top cover, shift rod lever and hydraulic clutch actuator cover. The hydraulic clutch actuator is designed to be used with an 11/16 inch bore master cylinder and requires a 10mm banjo bolt. For maximum strength all gears are the same width as OEM gears. The splined main shaft is designed for a 1990-later style clutch hub. The 32-tooth pulley will accept a 1 1/2 inch wide drive belt. A neutral switch and speedometer sensor block off plate are included. Smooth shifting is accomplished by bronze shift forks and a roller type shift drum detent arm. Includes a 24-month manufacturor's warranty.