Faithful to the philosophy of product development, innovation and quality, REDS Racing have introduced the R5R Racer V4.0 engine, the perfect synthesis of inovation, high quality and great performance at a mid range street price. The New R5R has been redesigned with a brand new 5 ports sleeve and crankshaft timing. The engine is designed with improved fuel efficiency and drivability in mind and is suitable for both Buggy and Truggy.

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R5R Racer tuned by M.Rossi guarantees the same performance as a Pro engine at reasonable price. The 4.0 is one of the most advanced and innovative products on the market, equipped with the best technology to improve reliability and guarantee the best performance on all terrains: HCX horizontal carburetor, silicon filled and tuned crankshaft, sleeve with 5 inlet ports and classic exhaust port, high sealing front bearing, rear steel high quality chrome steel bearing.



The 4.0 is hand-tuned by M. Rossi. Every single engine is hand inspected and compression checked inside REDS Racing headquarters by Mario and Marco Rossi to achieve the highest quality standards. This is core to the values that makes the 4.0 different from any other engine brand on the market.