Source: O.S. Engines

O.S. Engines have introduced the new B21 Ronda Drake Edition nitro engine. Based on the O.S. Speed B21 Adam Drake Edition 2 nitro engine, the Ronda Drake Edition engine is distinguished by a pink cooling head with Ronda’s graphics. The engine is available separately or as a combo set including the T-2090SC pipe and 85mm longer manifold.