O.S. 12XZ ABC 12F Slide Engine
New from O.S. Engines: Even more power for the 12XZ! The O.S. 12XZ ABC 12F Slide Engine features newly designed major parts that are designed to max out low- to mid-speed torque! A new crankshaft featuring a counter-balancing shape and a more efficient intake port The connecting rod is made of a new material, and […]