 This is a replacement RB Concept Crankcase, and is intended for use with the RB Concept Sport 10. This crankcase has been designed and developed to be light, rigid and strong in order to achieve optimum performance. The crankcase
material is a highly developed alloy, which provides greater stability.
It is formed utilizing a vacuum system, which avoids the creation of air
cavities during the molding process. Additionally, the improved crankcase design provides a
solid foundation for this "next generation" 3-Port
engine.
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