Suzuki GSX 250E (1980) vs Honda XBR 500 (1985-89) vs BMW R 1200GS (2004) vs Moto Guzzi V-7 750 Sport (1971-72) vs Aprilia RS4 50 Replica (2014)
Comparison technical specifications
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| Make: | Suzuki | Honda | BMW | Moto Guzzi | Aprilia |
| Model: | GSX 250E | XBR 500 | R 1200GS | V-7 750 Sport | RS4 50 Replica |
| Years: | 1980 | 1985-89 | 2004 | 1971-72 | 2014 |
| Engine: | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder | Four stroke, single cylinder, SOHC, RFVC, 4 valve | Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder | Four stroke, 90° V twin, longitudinally mounted, OHV, 2 valve per cylinder | Two stroke, single cylinder |
| Capacity: | 249 cc / 15.2 cu in | 499 cc / 30.4 cu-in | 1170 cc / 71.4 in. | 748.4 cc / 45.6 cu-in | 49.9 cc / 3.05 cub in. |
| Bore x Stroke: | 60 х 44.2 mm | 92 x 75 mm | 101 x 73 mm | 83 x 70 mm | 39.9 x 39.9 mm |
| Compression Ratio: | 10.5:1 | 9.0:1 | 11.0:1 | 9.8:1 | 11.5:1 |
| Cooling System: | Air cooled | Air cooled | Air/oil cooled | Air cooled | Liquid cooled |
| Ignition: | Electronic | CDI | BMS-K | Battery with double contact breaker with automatic advance | CDI |
| Starting: | Electric | Electric and kick | Electric | Electric | Electric |
| Transmission: | 6 Speed | 5 Speed | 6 Speed | 5 Speed | 6-Speed |
| Final Drive: | Chain | Roller chain | Shaft | Shaft | Chain |
| Front Suspension: | Telescopic forks | 35mm Telescopic forks | Telelever, stanchion ∅41mm, central spring strut, spring preload 9 times mechanically adjustable. | Telehydraulic forks | Upside down fork, Ø41 mm |
| Rear Suspension: | Swinging arm, dual dampers, 5-way spring preload | Hydraulic dampers | Die-cast aluminium single-sided swinging arm with BMW Motorrad Paralever, WAD strut (travel-related damping), spring pre-load hydraulically adjustable to continuously variable levels by means of handwheel, rebound damping adjustable. | Swinging arm with hydraulic dampers preload adjustable | Asymmetric swingarm, monoshock |
| Front Brakes: | Single 275mm disc | Single 276mm disc 2 piston caliper | 2 x ∅305mm discs, 4 piston caliper | 2x 220mm drum, Double-sided with twin leading shoes per side drum. | Stainless steel disc, Ø 300 mm, 4-piston radial caliper |
| Rear Brakes: | Drum | 140 mm Drum | Single ∅265 mm disc, 2 piston caliper | 220mm drum | Stainless steel disc, Ø 218 mm, single piston caliper |
| Front Tyre: | 3.60-18 | 100/90-18 | 110/80 ZR19 | 90/90-18 | 110/80-17 |
| Rear Tyre: | 4.10-18 | 110/90-18 | 150/70 ZR17 | 110/90-18 | 130/70-17 |
| Fuel Capacity: | 12 Litres / 3.2 US gal / 2.6 Imp gal | 20 Litres / 5.2 US gal | 20 Litres / 5.2 US gal | 17 Litres / 4.4 US gal | 14.5 Litres / 3.8 US gal |