OS Speed 12XZ Spec III Engine

The OS Speed 12XZ Spec III is a high performance engine meeting IFMAR specifications produced by OS Speed Team technicians. Major parts such as cylinder and piston assembly, crankshaft and crankcase have been refined to a powerful potential equal to more expensive specially tuned or modified engines. Also, it employs an outer head that has many drilled holes for lighter weight and better cooling, and a ceramic rear ball bearing for lower friction.