Coming soon from Maxima is the Mx GT1 3.5cc on-road engine for GT racing classes. Based on the O.S. Speed 21ZX-GT the power plant received several modifications to increase the performance, torque and mileage. The long stroke engine features a 5+3 ports design for increased mid to high RPM power, a silicone-filled, DLC-coated and tungsten-balanced GT-spec crankshaft as well as a low centre of gravity cooling head. The engine utilises a ROAR-legal 2-needle carburettor with 7mm insert and it comes factory selected and tuned.