TrailMaster New TrailMaster EFI Go Kart 300 XRS4E, CVT Fully Automatic Liquid Cool Engine What is not assembled if buying fully assembled: Roll cages, battery; New TrailMaster EFI Go Kart 300 XRS4E, CVT Fully Automatic Liquid Cool EngineThe TrailMaster 300 XRS4E is an upgrade from the 300 XRS4. This is a full size 4-seat go kart fits up to... $4,849.00 Choose Options Add to Wish list Compare