.21 R/C Novarossi Upgraded REX Engine with Venturi instead of R/C carburetor (not shown).3.49cc. Maximum power at 33,000 RPM, 2K - 39,000 RPM practical range. Bore x Stroke 16.42 x 16.42. Two High Speed Ball Bearings; Bushed Rod; True ABC Piston Sleeve Design; 4 Ports; Weight 11.5 oz. Power: 1.87 H.P. at 28,000. 13mm crankshaft. Side Exhaust. 10% nitro fuel. Includes 50043 Muffler.
Venturi model is not pictured.