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Suzuki RG500 Gamma

Suzuki RG500 Gamma

Suzuki’s 500cc grand prix replica, The RG500 was built between 1985-1987 to supply the demand for road going sports bikes that looked like the famous race bikes of the time. Back in the late 80’s these competed with the Yamaha RD500LC & Honda NS400R for the ‘top gun’ sports bike crown.

Less than 10,000 were made & far fewer survive today. The Gamma was probably a bit closer to the genuine GP bikes than Yamahas RD, though the RD does have better road manners. Also available in 400cc for the Japenese markets, though less desirable & less expensive than the 500, the 400 is still a great bike. Make sure any bike you are considering is a genuine 500 & not a 400 in ‘disguise’.

Problems sourcing panels - very rare & the disc valves can de-laminate if the bike is used infrequently. The RG500 Gamma (the lower case ‘r’ symbol is the third letter of the Greek alphabet ‘gamma’) is a highly desirable super bike & prices for these machines are only going higher. This bike is definitely one to add to your ‘bucket list’.



Type – Liquid-cooled, two-stroke square four with AEC
Capacity – 498cc
Compression Ratio - 7:1
Ignition – Electronic
Fuel System – 4 x 28mm Mikuni flatslide carburettors


Primary/Final Drive – Gear / Chain
Clutch – Wet, Multiplate
Gearbox – Six Speed


Frame – Aluminium Perimeter
Front Suspension – 38mm air assisted forks with preload adjustment and anti-dive
Rear Suspension – Single shock with adjustable preload
Front Brake – 2 x 260mm disc with four piston calipers
Rear Brake – 1 x 210mm disc with twin piston caliper
Wheels – Six spoke cast alloy
Front Tyre – 110/90 V16
Rear Tyre – 120/90 V17


Dry Weight – 154 KG (339.5lb)
Wheelbase – 1425mm (56”)
Seat Height – 770mm (30.5”)
Fuel Capacity – 22 Litres (4.8 Gallons)


Top Speed – 149 MPH
SS ¼ Mile – 11.6 sec@119mph
Claimed Power – 95 bhp@9500 rpm
Claimed Torque – 5259 lb.ft@9000rpm
Fuel Consumption – 30 mpg
Price New In 1985 – £3299