TrailMaster New TrailMaster EFI Go Kart 300 XRS4E, CVT Fully Automatic Liquid Cool Engine 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 adults! Comparing to the most common 150cc engine on the market, this... $4,499.00 Choose Options Add to Wish list Compare