O.S. 12XZ ABC 12F Slide engine
The new O.S. 12XZ ABC 12F Slide engine features newly designed major parts that are designed to max out low- to mid-speed torque. Sporting a new crankshaft that features a counter-balancing shape and a more efficient intake port, the connecting rod is made of a new material, and the crankcase has been strengthened. Improvements have also been made to the liner ports, inner head and the 12F slide valve carb and it is supplied with a high-performance RP6 plug.