NXT Engine SkinsDescription Introducing C3 NXT ENGINE SKINS!! Better late than never! We took our time to assess and test the engine covers available on the market, and if there was one we loved, we would have distributed it. Instead, we formulated a totally different approach and were able to design an awesome new system that we're confident you'll agree is the top choice for your snowbike build! Highlights: Form fitting press molded EVA foam & leather shells