From REDS Racing:
REDS Racing introduces the all-new R5R V3.0 combo which includes the powerful R5R Racer 3.0 engine, REDS 2104 pipe combined with S manifold, 6.5 and 7.0 mm venturi, engine dust caps and super-popular REDS Quattro clutch system. R5R V3.0 Combo comes in two versions, with or without REDS Quattro clutch system.
R5R Racer V3.0 engine tuned by M.Rossi guarantees the same performance as the Pro Team Edition engine at reasonable price.
REDS R5R Racer V3.0 is equipped with: HCX horizontal carburetor, silicon filled and tuned crankshaft, sleeve with 5 inlet ports and classic exhaust port, high sealing front bearing, rear high quality chrome steel bearing. All parts are matched, measured by Mario within certain tolerances and hand built by him personally.
“REDS Racing R5R is a real beast. It provides high torque, incredible power, and good runtime. This is a race bred engine you can use in your Truggy, and also in Buggy when you need the extra power.”