Triumph specialist M.A.P. Cycle has a belt drive conversion kit for unit construction Triumph twins. The system uses a lightened steel billet front pulley and a hardened aluminum clutch basket with sealed double ball bearings designed by M.A.P. Clutch plates feature 12 tangs with eight times more surface area over the stock plates for better clutch action and longer basket life. Fits in the stock primary cover, and since it runs dry that means no more primary cover oil leaks! 650-750 twins, $850.