Suzuki RG500

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RG 500 Gamma.JPG

The Suzuki RG500 Gamma was a motorcycle built by Suzuki between 1985 and 1987 and inspired by the RG Gamma Grand Prix racer of the 1970s, capitalizing on Suzuki's seven consecutive wins in the 500 cc-class. The Gamma was powered by a two stroke, rotary valve, twin crank, square four engine displacing 498 cubic centimeters. The power output was 93.7 brake horsepower (69.9 kW) at 9,500 RPM. The engine employed liquid-cooling by means of a front-mounted radiator with a thermostatic control. Suzuki employed an aluminum boxsection frame with castings for the headstock and swinging arm for the Gamma. The front suspension had pre-load adjust and an anti-dive system called "POSI DAMP" to control the tendency of a motorcycle's nose to dive under braking. At the rear the full-floater suspension design used dual-swingarms. The motorcycle weighed 154 kg (340 lb) dry.

The bike was also offered as a RG400 mainly for the Asian markets.

Production numbers

Model 1985 1986 1987 Total
RG500 7340 1412 532 9284
RG400 5002 863 348 6213