LS2 FF805 Thunder Carbon Racing Motorcycle Helmet Lightweight Track Crash Lid. This LS2 FF805 Thunder Carbon motorcycle helmet is perfect for those of you who love a track day thanks to it's great features! LS2 FF805 Thunder Carbon Helmet Features. Constructed with multiple layers of LS2's exclusive wide-weave carbon fiber.Very light, but strong shell that handles impacts while dispersing energy for a safer ride. LS2 visors are built with 3D Optically Correct "A Class" Polycarbonate. High resistance to impact, that avoids distortion and offers maximum clarity. Scratch, UV, & fog resistant. Pinlock Max ready (insert included). Removable and washable comfort liner. Reinforced double-D ring chin strap. LS2 FF805 Thunder motorcycle helmet. Screwdriver tool for ratchet system. All helmets are homologated and certified under ECE regulations. Motorcycle Helmet Size Guide (Brands May Vary). All we ask is that you send the item(s) back unused, in their original condition and with all the original packaging.