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Suzuki RGV250 Gamma 1987—1997

I have put some RG250 Gamma information on this page. I would be grateful of any contributions — sales brochures, magazine ads, magazine articles, pictures, specs, facts, corrections etc. Please scan the material in JPEG format (large enough that all the details are visible) and send them to me. Please tell me the source and the publication date if possible. If you send me pictures of your own bike, please follow these instructions.

Suzuki RGV250 Gamma

RGV250 Gamma is a motorcycle for you if you don't like compromises and want to own a bike that is as near a racing bike as possible. It has been designed one one thing is mind: to ride as fast as possible from one curve to another. If you touring plans, forget this bike!

RGV250 Gamma was based on the RG250 Gamma, a slightly less sportier motorcycle and with a less modern 2-stroke engine.

The chassis of the RGV250 is very light, smooth and also very stable. The weight of the bike is very low, only 128 kg (282 lbs) for the first version. The engine is a 90° aluminum V-twin (later 70°) water-cooled 2-stroke delivering 68-67 hp at very high rpm's (the stock bike power output vary between countries, from 40 to 67 bhp). Because the machine is mainly purposed for racing, a trim kit for 70 bhp is offered by Suzuki.

Maximum Speed: 205-215 km/h
Caster: 25°
Trail: 94 mm


Suzuki 1987More Suzuki models from 1987
1987 Suzuki year code: H

Suzuki RGV250 GammaRGV 250 Gamma 1987
Overall Length: 2 010 mm (79.1 in)
Overall Width: 675 mm (26.6 in)
Overall Height: 1 170 mm (46.1 in)
Wheelbase: 1 355 mm (53.3 in)
Dry Weight: 128 kg (282 lbs)
Engine type: 247 cc water-cooled 2-stroke V-twin. 45 hp/ 8.500 rpm, 3.8 kg-m/ 8.000 rpm.

Click on the image for larger format.



Suzuki 1988More Suzuki models from 1988

1988 Suzuki year code: J


1988—1989 RGV250 Gamma specs:


Overall length: 2 015 mm (79.3 in)
Overall width: 695 mm (27.4 in)
Overall height: 1 065 mm (41.9 in)
Seat height: 755 mm (29.7 in)
Wheelbase: 1 375 mm (54.1 in)
Ground clearance: 120 mm (4.7 in)
Dry mass: 128 kg (282 lbs)

Engine type: 249 cc water-cooled 2-stroke V-twin
Bore x Stroke: 56.0 x 50.6 mm
Engine compression: 7,5:1
Carburators: Mikuni VM32SS
Gearbox: 6-speed constant mesh
Primary drive: 2.565 (59/23)
Secondary drive: 3.066 (46/15)
1st gear: 2.454 (27/11)
2nd gear: 1.625 (26/16)
3rd gear: 1.235 (21/17)
4th gear: 1.045 (23/22)
5th gear: 0.916 (22/24)
6th gear: 0.840 (21/25)
Drive Chain: DID520V2, 114 links
Front brakes: twin 300 mm disk, 4-cylinder
Rear brake: single 210 mm disk, 2-cylinder
Front tyre dimension: 110/70-17
Rear tyre dimension: 140/60-18
Ignition type: Suzuki PEI (Pointless Electric Ignition)
Ignition timing: 14 degree's before top dead center
Spark plugs: NGK BR9ES
Fuel tank capacity: 17 liter (5,5 liter reserve)
Front suspension: Telescopic, coil spring, oil damped, spring 5-way adjustable
Rear suspension: Full-floating suspension, gas/coil spring, oil damped, spring 7-way adjustable
Steering angle: 30 degrees
Caster: 64,25 degrees
Front fork stroke: 120 mm
Rear wheel travel: 140 mm
Engine oil capacity: 1,1 liter
Transmission oil capacity: 700 ml
Coolant capacity: 1,6 liter
Front fork oil capacity: 429 ml

Suzuki RGV250 GammaRGV 250 Gamma 1988
Overall Length: 2 015 mm (79.3 in)
Overall Width: 695 mm (27.4 in)
Overall Height: 1 065 mm (41.9 in)
Seat Height: 755 mm (29.7 in)
Wheelbase: 1 375 mm (54.1 in)
Ground Clearance: 120 mm (4.7 in)
Dry Weight: 128 kg (282 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin 50,4 hp/ 11.000 rpm. Japan: 45 ps/ 8.500 rpm, 3,8 kg-m/ 8.000 rpm.

Click on the image for larger format.

Suzuki RGV250 GammaRGV 250 Gamma SP 1988
Overall Length: 1 990 mm (78.4 in)
Overall Width: 695 mm (27.4 in)
Overall Height: 1 065 mm (41.9 in)
Wheelbase: 1 375 mm (54.1 in)
Dry Weight: 128 kg (282 lbs)
Engine type: 249 cc, water-cooled 2-stroke V-twin 50,4 hp/ 11.000 rpm. Japan: 45 ps/ 8.500 rpm, 3,8 kg-m/ 8.000 rpm.

Click on the image for larger format.


Suzuki 1989More Suzuki models from 1989

1989 Suzuki year code: K

Suzuki RGV250 GammaRGV 250 Gamma 1989
Overall Length: 2 015 mm (79.3 in)
Overall Width: 695 mm (27.4 in)
Overall Height: 1 065 mm (41.9 in)
Seat Height: 755 mm (29.7 in)
Wheelbase: 1 375 mm (54.1 in)
Ground Clearance: 120 mm (4.7 in)
Dry Weight: 128 kg (282 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 59 hp (42.9 kW)/ 11.000 rpm, 37,3 Nm/ 10.800 rpm (Switzerland)

Click on the image for larger format.
Here's even larger picture.

Suzuki RGV250 GammaRGV 250 Gamma 1989
Overall Length: 1 990 mm (78.4 in)
Overall Width: 695 mm (27.4 in)
Overall Height: 1 065 mm (41.9 in)
Seat Height: 766 mm (30.2 in)
Wheelbase: 1 375 mm (54.1 in)
Dry Weight: 129 kg (284 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 58 hp (42,3 kW)/ 11.000 rpm. 45 hp/ 9.500 rpm, 3.8 kg-m/ 8.000 rpm (Japan). 56.54 hp, 29.0 ft-lbs/ 10.500 rpm (Australia)

Click on the image for larger format.

Suzuki RGV250 GammaRGV 250 Gamma 1989
Bore xStroke: 56.0 x 50.6mm
Compression Ratio: 7.3:1
Carburetors: 2 x Mikini VM34SS 34mm Slingshot type
Seat Height: 766mm
Tyres: 110/70-17, 140/60x18
Clutch: Wet Multi plate type
Maximum Power: 56.54 hp
Torque:29.0 ft-lbs/ 10.500rpm
Top Speed: 204 km/h
1/4 Mile time: 12.9 seconds at 174kmh (108mph)
O-100kmh : 3.6 seconds (Australia)

Click on the image for larger format.


Suzuki 1990More Suzuki models from 1990

1990 Suzuki year code: L


New fully adjustable rear suspension. Colors: blue/white, red/white and black/silver.
34mm Mikini VM34SS carburetors. Rear suspension: full floating suspension system, gas/coil spring, oil damped, spring pre-load fully adjustable, extension damping force 4-Way adjustable and compression damping force 19-Way adjustable.
Suzuki RGV250 GammaRGV 250 Gamma 1990
Overall Length: 1 990 mm (78.4 in)
Overall Width: 695 mm (27.4 in)
Overall Height: 1 065 mm (41.9 in)
Seat Height: 766 mm (30.2 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 129 kg (284 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 59 hp (42.9 kW)/ 11.000 rpm, 37,3 Nm/ 10.800 rpm (Switzerland)

Click on the image for larger format.


Suzuki 1991More Suzuki models from 1991

1991 Suzuki year code: M


For the 1991 year's model the RGV250 Gamma was updated with new carburetors (from 32 mm to 34 mm), power valves and new front suspension. A new semi-frame banana swingarm was introduced (looks a lot like the one used in Honda NSR). It gave better ground clearance and allowed to draw the exhaust pipes where the swingarm should have been. Both exhaust pipes were now drawn at the same side of the bike. The new swingarm stiffened the rear end quite dramatically but also increased the weight from 129 kg to 139 kg. With a new rear swingarm the front end was also rebuilt with the new upside down suspension forks, which had a good design but the performance was not as good as the old forks which it replaced. The power output and torque was increased slightly and a 17" rear wheel added to the list of upgrades.

With the introduction of the power valves came the biggest problem of the RGV250. The valve valves wears down from opening and closing and can collide with the piston and brake. Happens sometimes in bikes with high milage.


1991 RGV250 Gamma (changed specs):

Overall Length: 1 980 mm (78.0 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Seat Height: 766 mm (30.2 in)
Ground Clearance: 125 mm (4.9 in)
Dry Weight: 139 kg (306 lbs)
Compression ratio: 7.3:1 (for the use of unleaded fuel)
Carburetors: Mikini TM34SS
Final Reduction: 3.071 (43/14)
Front suspension: Inverted telescopic, coil damped, inner rod type, spring 5-way adjustable.
Rear suspension: Full floating suspension system, gas/coilspring, oil damped, spring pre-load fully adjustable, extension damping force 4-way adjustable, compression damping force 19-way adjustable.
Swinging arm: New banana model
Caster angle: 65 degrees
Rear tyre size: 150/60/17
Rear wheel travel: 130 mm
Ignition timing: 10 degrees before top dead center
Spark plugs: BR9ECM
Fuel tank capacity: 16 liter (including reserve)
Reserve: 3,5 liter
Coolant capacity: 1,9 liter

Suzuki RGV250 GammaRGV 250 Gamma 1991
Overall Length: 1 980 mm (78.0 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Seat Height: 766 mm (30.2 in)
Ground Clearance: 125 mm (4.9 in)
Dry Weight: 139 kg (306 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 62 hp (45,6 kW)/ 11.000 rpm, 40 Nm/ 11.000 rpm (the Netherlands).


Click on the image for larger format.
Here's even larger picture.

Suzuki RGV250 GammaRGV 250 Gamma 1991
Overall Length: 1 980 mm (78.0 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 139 kg (306 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 63 hp/ 11.000 rpm, 4.0 kg-m/ 11.000 rpm (Italy), 45 hp / 9.500 rpm, 3,9 kg-m/ 8.000 rpm in (Japan).


Click on the image for larger format.

Suzuki RGV250 GammaRGV 250 Gamma 1991
Overall Length: 1 980 mm (78.0 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 139 kg (306 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 63 hp/ 11.000 rpm, 4.0 kg-m/ 11.000 rpm (Italy), 45 hp / 9.500 rpm, 3,9 kg-m/ 8.000 rpm in (Japan).


Click on the image for larger format.

Suzuki RGV250 Gamma SPRGV 250 Gamma SP 1991
Overall Length: 1 980 mm (78.0 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 139 kg (306 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 63 hp/ 11.000 rpm, 4.0 kg-m/ 11.000 rpm (Italy), 45 hp / 9.500 rpm, 3,9 kg-m/ 8.000 rpm in (Japan).

Click on the image for larger format.

Suzuki RGV250 Gamma


Suzuki 1992More Suzuki models from 1992

1992 Suzuki year code: N

Suzuki RGV250 GammaRGV 250 Gamma 1992
Overall Length: 1 980 mm (78.0 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Wheelbase: 1 380 mm (54.3 in)
Weight: 169 kg (372 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 62 hp/ 11.000 rpm, 4.0 kg-m/11.000 rpm.

Click on the image for larger format.
Here's even larger picture.

Suzuki RGV250 GammaRGV 250 Gamma 1992
Overall Length: 1 980 mm (78.0 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Wheelbase: 1 380 mm (54.3 in)
Weight: 169 kg (372 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 62 hp/ 11.000 rpm, 4.0 kg-m/11.000 rpm.

Click on the image for larger format.

Suzuki RGV250 GammaRGV 250 Gamma SP 1992
Overall Length: 1 980 mm (78.0 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Wheelbase: 1 380 mm (54.3 in)
Weight: 169 kg (372 lbs)
Engine type: 249 cc DOHC water-cooled 2-stroke V-twin. 62 hp/ 11.000 rpm, 4.0 kg-m/11.000 rpm.

Click on the image for larger format.


Suzuki 1993More Suzuki models from 1993

1993 Suzuki year code: P


Engine upgrade, The V-twin was redesigned from 90° to 70° between the cylinders. Ram Air cooling system. Other changes from previous model: Overall length increased to 1995 mm (78.5 inches), new double braced swingarm with extra rigidity for racing, revised power-valves, revised gearbox (2nd and 5th).

Suzuki RGV250 GammaRGV 250 Gamma 1993
Overall Length: 1 995 mm (78.5 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Seat Height: 766 mm (30.2 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 139 kg (306 lbs)
Engine type: 249 cc water-cooled 2-stroke 70° V-twin. 62 hp/ 11.000 rpm, 4.0 kg-m/ 11.000 rpm.

Click on the image for larger format.

Suzuki RGV250 GammaRGV 250 Gamma 1993
Overall Length: 1 995 mm (78.5 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Seat Height: 766 mm (30.2 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 139 kg (306 lbs)
Engine type: 249 cc water-cooled 2-stroke 70° V-twin. 62 hp/ 11.000 rpm, 4.0 kg-m/ 11.000 rpm.

Click on the image for larger format.

Suzuki RGV250 GammaRGV 250 Gamma 1993
Overall Length: 1 995 mm (78.5 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Seat Height: 766 mm (30.2 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 139 kg (306 lbs)
Engine type: 249 cc water-cooled 2-stroke 70° V-twin. 62 hp/ 11.000 rpm, 4.0 kg-m/ 11.000 rpm.

Click on the image for larger format.

Suzuki RGV250 Gamma SPRGV 250 Gamma SP 1993
Overall Length: 1 985 mm (78.2 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Wheelbase: 1 385 mm (54.5 in)
Dry Weight: 138 kg (304 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 62 hp/ 11.000 rpm, 4.0 kg-m/11.000 rpm.

Click on the image for larger format.

Suzuki RGV250 Gamma


Suzuki 1994More Suzuki models from 1994

1994 Suzuki year code: R

Revised power-valves and a new paint job. Colors: blue/white and black/purple.

Suzuki RGV250 GammaRGV 250 Gamma 1994
Overall Length: 1 980 mm (78.0 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1 070 mm (42.1 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 138 kg (304 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 62 hp/ 11.000 rpm, 4.0 kg-m/11.000 rpm.

Click on the image for larger format.



Suzuki 1995More Suzuki models from 1995

1995 Suzuki year code: S


Colors: blue/white and black/purple.

Suzuki RGV250 GammaRGV 250 Gamma 1995
Overall Length: 2 050 mm (80.7 in)
Overall Width: 685 mm (27.0 in)
Overall Height: 1 220 mm (48.0 in)
Seat Height: 760 mm (29.9 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 139 kg (306 lbs)
Engine type: Water-cooled 249 cc water-cooled 2-stroke V-twin. 62 hp/ 11.000 rpm, 4.0 kg-m/11.000 rpm.

Click on the image for larger format.

Suzuki RGV250 Gamma


Suzuki 1996More Suzuki models from 1996

1996 Suzuki year code: T

Suzuki RGV250 GammaRGV 250 Gamma 1996
Overall Length: 1965 mm (77.2 in)
Overall Width: 695 mm (27.4 in)
Overall Height: 1 095 mm (43.1 in)
Seat Height: 766 mm (30.2 in)
Wheelbase: 1 380 mm (54.3 in)
Dry Weight: 139 kg (295 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 62 hp/ 11.000 rpm, 4.0 kg-m/11.000 rpm.

Click on the image for larger format.

Suzuki RGV250 Gamma SPRGV 250 Gamma SP 1996
Overall Length: 1965 mm (77.2 in)
Overall Width: 695 mm (27.4 in)
Overall Height: 1 095 mm (43.1 in)
Wheelbase: 1 330 mm (52.4 in)
Dry Weight: 134 kg (295 lbs)
Engine type: 249 cc water-cooled 2-stroke V-twin. 62 hp/ 11.000 rpm, 4.0 kg-m/11.000 rpm.

Click on the image for larger format.



Suzuki 1997More Suzuki models from 1997

1997 Suzuki year code: U

The RGV250SP uses a dry clutch and special 32mm carburetors with sensors for the airbox pressure. The bike also has electric start and uses ram-air technology (check the pipe next to the headlight going straight into the frame). The bike is supposed to produce nearly 70 hp when de-restricted (the power output is restricted to 40 hp in Japan, in Italy the power output is given to 67 hp).

Suzuki RGV250 Gamma SPRGV 250 Gamma SP 1997
Overall Length: 1 965mm (77.4 in)
Overall Width: 695 mm (27.4 in)
Overall Height: 1 095 mm (43.1 in)
Seat Height: 765 mm (30.1 in)
Wheelbase: 1 330 mm (52.4 in)
Dry Weight: 134 kg (295 lbs)
Engine type: Water-cooled 249 cc water-cooled 2-stroke V-twin. 67 hp.

Click on the image for larger format.

Suzuki RGV250 Gamma





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