1985 Suzuki RG125 Gamma

Suzuki RG 125 Gamma

Make Model	Suzuki RG 125 Gamma
Year	1985
Engine	Two stroke, single cylinder, crankcase reed valve
Capacity	124 cc / 7.6 cu-in
Bore x Stroke	54 x 54 mm
Compression Ratio	7.4:1
Cooling System	Liquid cooled
Lubrication	Suzuki CCI
Induction	28mm Mikuni carburetor
Ignition	CDI
Max Power	18.4 kW / 25 hp @ 9.500 rpm
Max Torque	19.1 Nm / 1,95 kg-m / 14.1 lb-ft @ 8500 rpm.
Clutch	Wet multi-plate type
Transmission	6 Speed
Final Drive	Chain
Front Suspension	30 mm Telescopic forks
Rear Suspension	Single shock linkage
Front Brakes	Single 230 mm disc
Rear Brakes	130 mm Drum
Front Tyre	80/100 S16
Rear Tyre	90/90 S18
Dimensions	Length 2 030 mm / 79.9 in Width 660 mm / 26.0 in Height 1155 mm / 45.5 in
Wheelbase	1310 mm / 51.6 in
Seat Height	730 mm / 28.7 in
Dry Weight	96 kg / 209 lbs
Fuel Capacity	12 Litres / 3.2 US gal / 2.6 Imp gal
Standing ¼ Mile	20.3 sec
Top Speed	111 km/h / 69 mph

The little and spicy member of the Gamma-family
In March 1983 Suzuki presented the RG250 Gamma to show who's the king of the road track and a couple of years later the RG125 Gamma was introduced to give a match to the Italian 125cc racers.

RG125 Gamma was introduced in Europe at IFMA '84, the International Bike Show in Cologne, West-Germany, in late 1984. The bike at the show had only a 80cc engine and the 125cc version was to be introduced later. There's nearly no market at all for 125cc motorcycles in West-Germany but the 80cc bikes sold very well.

The RG125 Gamma borrowed a lot from its bigger brothers, RG250 and RG500 Gamma but the single cylinder RG125 was very narrow, making it almost impossible for the sides of the motorcycle to touch the tarmac when leaning the bike in corners. The maximum leaning angle is whole 55 degrees! The first model had only 105 kg (231 lbs) dry mass. Its steel frame was almost fragile but it worked well. The brakes were good at the time and had a great feeling.

Riding a RG125 Gamma is quite unpleasant experience for the taller riders. The small dimensions of the bike gives a great racing feeling but it certainly isn't a bike for touring.

The water-cooled two-stroke engine vibrates a lot and the rear mirrors are blurry at all speeds. It delivers a lot of power, though (25 hp, 19 Nm). For more powerful mid-range the engine has a system called AEC, that opens an extra exhaust chamber.

Only cosmetic changes were made to the RG125 Gamma between 1985 and 1991. The 1992 year's RG125 Gamma was totally redigned. The frame, the suspension and everything of the bike were better. The engine was upgraded to deliver 33 hp at 11.250 rpm. The new RG125 Gamma borrowed a lot from the RGV250. The engine can be described a s a RGV250 engine with a single cylinder instead of two. Even the 125cc engine got an electric starter and balance axel to reduce vibrations.

A naked version called RG125U Wolf was also introduced in 1992.