Performance Machine Vision Transmission Top Cover For Harley M8 Performance Machine Vision Transmission Covers give you the ability to view what goes inside the heart of your bikes gearbox. The UV and abrasion resistant polycarbonate lens is framed by a 6061-T6 aluminum bezel to add structural integrity as well as provide an even distribution of clamping force to eliminate cracking. All Vision covers are precision CNC machined out of billet aluminum and come complete with chrome hardware and any needed gaskets. Features Aluminum lens bezel eliminates cracking UV abrasion, hazing, and yellowing resistant polycarbonate lens CNC machined from billet aluminum Chrome hardware and gaskets included