Suzuki RG 500 Gamma (1986)

The Suzuki RG 500 Gamma is a motorcycle that was manufactured in 1986. Its two-stroke square four-cylinder engine has a rotary valve with exhaust port valves and a capacity of 498 cc. The cooling system is liquid cooled, with a compression ratio of 7.0:1 and a lubrication system of wet sump induction. The ignition is from Suzuki PEI spark plug and starting is by kick. The maximum power output is 70 kW or 95 hp at 9000 rpm, with maximum power at the rear tire of 61.9 kW or 83 hp at 10000 rpm. The maximum torque output is 72 Nm or 7.3 kgf-m, 53.1 lb-ft at 9000 rpm. The clutch used is wet and cable operated, and the transmission has six speeds with a final drive of chain, 2.500 (40/16). The frame is made of steel and has a double cradle frame. The front suspension uses an air-adjustable fork with 38mm tubes, adjustable spring preload, and anti-dive valuing. The rear suspension has a shock absorber that is adjustable for spring preload. The front and rear brakes are made of two 260mm discs with four-piston calipers and a single 210mm disc with 2-piston caliper, respectively. The motorcycle’s dimensions are 2100 mm in length, 695 mm in width, and 1185 mm in height, and it has a seat height of 770 mm. The dry weight is 156 kg, while the wet weight is 175 kg, and the fuel capacity is 22 litres. The consumption average is 8.7 L/100 km, and the braking distance from 60 km/h to 0 is 16 m, while the braking distance from 100 km/h to 0 is 39.2 m. The standing quarter-mile distance for the motorcycle is 11.2 sec at 193.9 km/h, and the top speed is 236.4 km/h. It underwent a road test and was reviewed in the Motociclismo Motosprint Group Test.

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Technical specifications:

Make Model: Suzuki RG 500 Gamma

Year: 1986

Engine: Two stroke, square four cylinder, rotary valve with exhaust port valves

Capacity: 498 cc / 30.4 cu in

Bore x Stroke: 56 x 50.6 mm

Cooling System: Liquid cooled

Compression Ratio: 7.0:1

Lubrication: Wet sump

Induction: 4 x 28mm Mikuni VM28SH Flatslide carburetors

Ignition: Suzuki PEI

Spark Plug: NGK, BR9ES

Starting: Kick

Max Power: 70 kW / 95 hp @ 9000 rpm

Max Power Rear Tyre: 61.9 kW / 83 hp @ 10000 rpm

Max Torque: 72 Nm / 7.3 kgf-m 53.1 lb-ft @ 9000 rpm

Clutch: Wet, cable operated

Transmission: 6 Speed

Final Drive: Chain, 2.500 (40/16)

Primary Drive Ratio: 2.230 (58/26)

Gear Ratio: 1st 2.636 (29/11) / 2nd 1.750 (28/16) / 3th 1.380 (29/21) / 4th 1.173 (27/23) / 5th 1.045 (23/22) / 6th 0.956 (22/23)

Frame: Steel, double cradle frame

Front Suspension: Air adjustable fork with 38mm tubes, adjustable spring preload and anti dive valuing.

Front Wheel Travel: 130 mm / 5.2 in

Rear Suspension: Shock absorber, adjustable for spring preload

Rear Wheel Travel: 126 mm / 4.9 in

Front Brakes: 2 x 260 mm Discs, 4 piston calipers

Rear Brakes: Single 210 mm disc, 2 piston caliper

Front Tyre: 110/90 V16

Rear Tyre: 120/90 V17

Dimensions: Length 2100 mm / 82.7 in Width 695 mm / 27.4 in Height 1185 mm / 46.7 in

Wheelbase: 1425 mm / 56.1 in

Seat Height: 770 mm / 30.3 in

Ground Clearance: 120 mm / 4.7 in

Dry Weight: 156 kg / 339.5 lbs

Wet weight: 175 kg / 386 lbs

Fuel Capacity: 22 Litres / 5.8 US gal / 4.8 Imp gal

Consumption Average: 8.7 L/100 km / 11.5 km/l / 27 US mpg / 32.5 Imp mpg

Braking 60 km/h – 0: 16 m / 52.5 ft

Braking 100 km/h – 0: 39.2 m / 18.6 ft

Standing 1/4 Mile: 11.2 sec / 193.9 km/h / 120.5 mph

Top Speed: 236.4 km/h / 146.9 mph

Road Test: Motociclismo Motosprint Group Test