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Ultimate Racing M3X Off-Road Engine

Modelix Racing have released the new, OS based, 3 port .21 Off-Road M3X Competition engine by Ultimate Racing designed by the O.S team of engineers. The engine incorporates the following “Made in Japan” high precision steel rear bearing (that ensure high idle stability, longer life and low friction at high temperatures) and balanced crankshaft with tungsten weight and silicone filling.

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