presentation of the RG 250 Gamma 1984
RGs weren't always Gammas. In the late '70s, RGs ape Yamaha RDs. The 250cc version was one of the finest examples.
In 1983, Suzuki couldn't let itself be left behind in the 2-stroke sportbike market. The RD 250 and 350 had taken the lead by switching to liquid cooling; Suzuki opted for a technological breakthrough (and seriously regained the advantage) by offering, with the RG 250 Gamma, a completely new engine far removed from its predecessor. The 250cc remains an in-line twin-cylinder, but opts for recent, competition-derived technologies: liquid cooling, super-square engine (Bore x Stroke = 54.0 x 54.0), AEC Automatic Exhaust Control (a system designed to improve torque and pick-up at low revs without handicapping the engine at high revs, rather like Yamaha's exhaust valve (YPVS)) and Suzuki Intake Power Chamber (optimizing carburation).
In its first version, this engine develops 45 hp at 8,500 rpm, 10 hp more than the Yamaha RD250LC and almost as much power as a 1982 RD350LC (47 hp, the RD also evolved in 1983 to 59 hp, then 63 hp in 1986). It's a raging performer, taking its turns like nothing. But while the Suzuki engine performs very well, it's fair to say that it has found a chassis to match.

The bike is light, maneuverable thanks to its 16-inch front wheel and fairly narrow-section tires and, what's more, very good at braking (260 mm dual front discs fitted with 2-piston opposed calipers).
What's more, Suzuki has hit the nail on the head when it comes to the beast's aesthetics, consigning all RG Gamma rivals to the status of little old ladies. The lines of this 250 are worthy of the competition bikes of the moment. And if the fairing isn't integral, Suzuki's accessory catalog offers a shoe to remedy the situation.
As it would later do with the GSX-R, Suzuki made a point of keeping its RG Gamma at the top of its class. In fact, it underwent several major updates during its 5 years of production. The bike will evolve both technically and aesthetically. Suzuki also offered a special Walter Wolf series, named after a wealthy Canadian who financed a speed team at great expense.
The competition didn't leave the RG alone in the 250 supersport market for long: in 1984, Honda and Yamaha brought out their NS250R and Yamaha TZR250, which were at least as sharp as the RG Gamma. Kawasaki's KR250, although technically up to scratch, was a little out of date.
The RG 250 Gamma bowed out at the end of 1987 and was replaced by an all-new RGV 250 Gamma in 1988.
Tanthallas - Photos : Manufacturer

Key facts Suzuki RG 250 Gamma (1984) : What you need to know before you buy
Highlights
- Power
- poids
- Fiabilité
Weak points
- A little forgotten
- Consumption
Prices
| Basic version | |
|---|---|
|
5,300€
(Motoplanete estimate)
|
Performance
- Max speed : approximately 180 km/h (111.80 mph)
- Average fuel consumption : 6.60 liters/100km (0.36 mpg)
-
Estimated range
: 258 km (160 miles)
Calculated range until tank is empty, not verified.
Specifications Suzuki RG 250 Gamma 1984
- Chassis
- Frame : aluminum tubing + double cradle
- Fuel capacity : 17 liters (4.49 US gallons)
- Seat height : 785 mm (30.91 in)
- Length : 2,050 mm (80.71 in)
- Width : 685 mm (26.97 in)
- Min height : 1,220 mm (48.03 in)
- Wheelbase : 1,385 mm (54.53 in)
- Dry weight : 131 kg (289 lb)
- Weight when fully loaded : 153 kg (337 lb)
- Front axle
- Telehydraulic fork Ø 36 mm, Wheel travel : 130 mm (5.12 in)
- Braking 2 discs Ø 260 mm (10.24 in), 2-piston caliper
- Front tire : 100 / 90 - 16 → Order this type of tire
- Pressure : 2 bar
- Transmission
- 6 stage gearbox , manual
- Secondary by chain
- Rear axle
- Mono-damper, Wheel travel : 122 mm (4.80 in)
- Braking 1 disc Ø 210 mm (8.27 in), single-piston caliper
- Rear tire : 100 / 90 - 18 → Order this type of tire
- Pressure : 2.25 bar
- Motor
- two-cylinder online , 2 strokes
- 2 carburetors Ø 28 mm
- Cooling system : liquid
- 247 cc
- 46 ch (45.40 hp) to 8,500 rpm
- 3.90 mkg to 8,000 rpm
- Power-to-weight ratio : 2.89 kg/ch
- Weight / torque ratio : 33.59 kg/mkg
- Compression : 7.4 : 1
- Practical information
Gallery
Compare the RG 250 Gamma to its competitors
Fuel consumption
Range
Torque
Power
Power-to-Weight ratio
Torque-to-Weight ratio
Speed
FAQ Your frequently asked questions about the RG 250 Gamma 1984
- What is the power of the RG 250 Gamma 1984?
-
The RG 250 Gamma 1984 develops a power of 46 ch (45.40 hp)
- What is the torque of the RG 250 Gamma 1984?
-
The maximum torque of the RG 250 Gamma 1984 is 3.90 mkg to 8,000 rpm.
- What is the maximum speed of the RG 250 Gamma 1984?
-
The RG 250 Gamma 1984 is capable of reaching a top speed of approximately 180 km/h (111.80 mph) on the track.
- What is the weight of the RG 250 Gamma 1984?
-
The RG 250 Gamma 1984 has a a dry weight of 131 kg (289 lb), a weight when fully loaded of 153 kg (337 lb).
- What is the fuel consumption of the RG 250 Gamma 1984?
-
Average fuel consumption is estimated at 6.60 l/100km (0.36 mpg) according to the WMTC cycle.
- QWhat is the seat height of the RG 250 Gamma 1984?
-
To ensure good accessibility, the RG 250 Gamma 1984 offers a minimum seat height of 785 mm (30.91 in).
- What is the price of the RG 250 Gamma 1984?
-
The price of the RG 250 Gamma 1984 is 5,300€ in France
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