SINGLE CYLINDER BEVEL DRIVE 2V CLOSER COLLET SET [replace the crap stock half rings] It's been several years since the collets were first introduced and since then, MBP have sold thousands of sets world-wide. Proven in both race and street applications, the design has been refined to improve ease of installation as well as to increase service interval between shim measurement and adjustments. Available for bevel and belt-drive Desmodue, Desmoquattro and now Testastretta applications the collets dramatically extend the interval for valve adjustment and provide substantial gains in reliability on hard-use 4-valve engines. Either way you look at it, the collets offer an attractive value proposition to dealers and Ducati owners alike. * IN STOCK NOW * This is the BEVEL DRIVE collet kit, which includes 4 MBP collets.