| Year | 1978 |
| Bore x Stroke | 54 x 54 mm |
| Capacity | 247 cc / 15.1 cu in |
| Caster | 62.7o |
| Compression Ratio | 6.7:1 |
| Dimensions | Length: 2005 mm / 78.9 in Width: 760 mm / 29.9 in Height: 1055 mm / 41.5 in |
| Dry Weight | 126 kg / 278 lbs |
| Engine | Horizontal parallel twin, 2-stroke, piston reed valve |
| Final Drive | Chain |
| Front Brakes | Single disc |
| Front Suspension | Telescopic fork |
| Front Tyre | 3.00-18 |
| Fuel Capacity | 15 L / 4.0 US gal / 3.3 Imp gal |
| Gear Ratios | 1st 2.500 / 2nd 1.625 / 3rd 1.210 / 4th 1.000 / 5th 0.868 / 6th 0.782 |
| Max Power | 22.4 kW / 30 hp @ 8.000 rpm |
| Max Torque | 28.4 Nm / 2.9 kgf-m / 21 lb-ft @ 7000 rpm |
| Model. | Suzuki RG 250 |
| Rear Brakes | Drum |
| Rear Suspension | Dual shocks, coil springs |
| Rear Tyre | 3.25-18 |
| Standing 1/4 Mile | 14.2 sec |
| Starting | Kick |
| Trail | 107 mm / 4.2 in |
| Transmission | 6 Speed, constant mesh |
| Wheelbase | 1320 mm / 52.0 in |
