Suzuki GSX-R 750 (1995) vs BMW R 67/2 (1952-54) vs Yamaha RD 250 (1978)
Comparison technical specifications
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| Make: | Suzuki | BMW | Yamaha |
| Model: | GSX-R 750 | R 67/2 | RD 250 |
| Years: | 1995 | 1952-54 | 1978 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. | Two stroke, torque induction, parallel twin |
| Capacity: | 749 c / 45.7 cub. in. | 594 cc / 36.2 cu in | 247 cc / 15.0 cu-in |
| Bore x Stroke: | 70 x 48.7 mm | 72 x 73 mm | 54 х 54 mm |
| Compression Ratio: | 11.8:1 | 6.2:1 | 6.7:1 |
| Cooling System: | Liquid cooled | Air cooled | Air cooled |
| Induction: | 4 x TRM40 carburetors | 2 x Bing 1/24/15 - 1/24/16 or 1/24/25 - 1/24/26 carburetors | 2x Mikuni VM28 SC carburetor |
| Ignition: | Computer controlled electronic ignition | Magneto ignition | Battery and coil with breaker points |
| Starting: | Electric | Kick | Kick |
| Max Power: | 83.5 kW / 112 hp @ 10500 rpm | 20.9 kW / 28 hp @ 5600 rpm | 30 hp / 22.3 kW @ 7500 rpm |
| Clutch: | Cable operated, wet multiple, coil spring | Single plate, dry | Wet multi-plate |
| Transmission: | 6 Speed, constant mesh | 4 Speed | 6 Speed |
| Final Drive: | #530 Chain, O-ring sealed, 108 links | Shaft | Chain |
| Front Suspension: | Showa 43 mm cartridge style upside-down forks, preload, compression and rebound adjustable | Telescopic front fork with hydraulic damping; plunger type | Telescopic forks |
| Rear Suspension: | Full floater, preload, compression and rebound adjustable | Spring with coil compression springs and rubber deflection stops | Dual shocks |
| Front Brakes: | 2 x 310 mm Discs, 6 piston Nissin calipers | ∅200mm Drum duplex full hub | Single 267mm disc |
| Rear Brakes: | Single 280 mm disc, 2 piston Nissin caliper | ∅200mm Drum simplex full hub | Single 267mm disc |
| Front Tyre: | 120/70 ZR17 | 3.50 -19" | 3.00S-18-4PR |
| Rear Tyre: | 180/55 ZR17 | 3.50 -19" | 3.50S-18-4PR |
| Fuel Capacity: | 21 Litres / 5.5 US gal / 4.6 Imp gal | 17 liters / 4.4 US gal | 16.5 Liters / 4.2 US gal |