BMW G 310R (2020) vs Aprilia RS 250 (2002-03)
Comparison technical specifications
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| Make: | BMW | Aprilia |
| Model: | G 310R | RS 250 |
| Years: | 2020 | 2002-03 |
| Engine: | Single cylinder, DOHC, 4 valves | Two stroke, 90° V twin-cylinder, with laminar suction and exhaust valve. Separate lubrication with variable automatic mixer |
| Capacity: | 313 cc / 19.1 cu in | 249 cc / 15.2 cu in |
| Bore x Stroke: | 80 x 62 mm | 56 x 50.6 mm |
| Compression Ratio: | 10.6:1 | 12.0:1 (+/- 0.7) |
| Induction: | BMS-E2 | 2 x Ø34 mm Mikuni 34 SS flat side carburetors |
| Battery: | 12V, 8 Ah | 12v 4Ah |
| Starting: | Electric | Kick |
| Clutch: | Wet multi-plate | Oil bath, multiple-disc, with lever control on handlebars |
| Max Power: | 25 kW / 34 hp @ 9500 rpm | 52.9 kW / 72.5 hp @ 11900 rpm |
| Max Torque: | 28 Nm / 20.7 ft-lb @ 7500 rpm | 40 Nm / 4.08 kgf-m / 29.5 lb/ft @ 10750 rpm |
| Transmission: | 6-Speed, constant-mesh | 6 Speed, direct drive |
| Final Drive: | Chain, O-ring | Chain, sealed, jointless, DID 520 V6 |
| Front Suspension: | 41mm Telescopic fork | Ø40 mm Inverted fork with adjustable rebound and compression damping. |
| Front Wheel Travel: | 140 mm / 5.5 in | 120 mm / 4.7 in |
| Rear Suspension: | Aluminium swinging arm in conjunction with a directly mounted spring strut | Magnesium alloy swingarm. Monoshock with resevoir, adjustable extension, compression and spring preloading. |
| Rear Wheel Travel: | 131 mm / 5.5 in | 130 mm / 5.1 in |
| Front Brakes: | Single 300mm disc | 2 x Ø298 mm discs, 4 piston calipers |
| Rear Brakes: | Single 240mm disc | Single Ø220 mm disc, 2 piston caliper |
| Front Tyre: | 110/70 R17 | 120/60-17 |
| Rear Tyre: | 150/60 R17 | 150/60-17 |
| Dimensions: | Length: 1988 mm / 78.3 in Width: 896 mm / 35.3 in | Length: 1880 mm / 74.0 in Width: 690 mm / 27.2 in Height: 1080 mm / 42.5 in |
| Wheelbase: | 1374 mm / 54.1 in | 1370 mm / 53.9 in |
| Seat Height: | 785 mm / 30.9 in | 810 mm / 31.9 in |
| Wet Weight: | 158.5 kg / 349 lbs | 167 kg / 368 lbs |
| Fuel Capacity: | 11 Litres / 2.9 US gal | 16.5 Litres / 4.4 US gal |