BMW R 50/5 (1969-73) vs Honda NX 650 Dominator (2000-01) vs Honda NX 650 Dominator (1992) vs BMS Choppers 250SS Road Star (2005) vs Honda VFR 400Z (1987)
Comparison technical specifications
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| Make: | BMW | Honda | Honda | BMS Choppers | Honda |
| Model: | R 50/5 | NX 650 Dominator | NX 650 Dominator | 250SS Road Star | VFR 400Z |
| Years: | 1969-73 | 2000-01 | 1992 | 2005 | 1987 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. | Four-stroke, single cylinder, SOHC, 4 valve per cylinder | Four-stroke, single cylinder, SOHC, 4 valve per cylinder | Four stroke, 48° V-twin | Four stroke 90°V-four cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 494 cc / 30.1 cu in. | 644 cc / 39.2 cu-in | 644 cc / 39.2 cu-in | 1671 cc / 102 cu in | 399 cc / 15.7 cu-in |
| Bore x Stroke: | 67 x 70.6 | 100 x 82 mm | 100 x 82 mm | 97 x 113 mm | 55 x 42 mm |
| Compression Ratio: | 8.6:1 | 8.3:1 | 8.3:1 | 8.3:1 | 11.3:1 |
| Cooling System: | Air cooled | Air cooled | Air cooled | Air cooled | Liquid cooled |
| Induction: | 2 x Bing carburetors | Single 40mm Keihin VE-type carburetor | Single 40mm Keihin VE-type carb | Ø40 mm Mikuni CV carburetor with throttle position sensor | 4x 34mm Keihin CV type carburetors |
| Ignition: | Battery ignition | Digital CDI | Digital CDI | Digital TCI | Digitalized full transistor ignition |
| Starting: | Electric & kick | Electric | Electric | Electric | Electric |
| Transmission: | 4 Speed | 5 Speed | 5 Speed | 5-Speed, wide ratio | 6 Speed |
| Final Drive: | Shaft | Chain | Chain | Belt | Chain |
| Frame: | Double loop steel tubular frame | Steel, Single cradle frame | Steel, Single cradle frame | Double tube cradle, single sided swingarm | Twin-spar aluminum |
| Front Suspension: | Telescopic fork with hydraulic shock absorber | 41mm leading-axle fork | 41mm leading-axle fork | Ø43 mm Telescopic fork with adjustable preload | 41mm inverted forks: preload and rebound damping |
| Rear Suspension: | Long swing arm with suspension units and oil pressure shock absorbers | Pro-Link, | Pro-Link, | Single shock, link-type | Rising-rate monoshock: pre-load and rebound damping |
| Front Brakes: | ∅200mm Drum, duplex full hub | Single 256mm disc 2 piston caliper | Single 256mm disc 2 piston caliper | Dual Ø298 mm discs, 4 piston calipers | 2x 269mm 4 piston calipers |
| Rear Brakes: | ∅200mm Drum, simplex full hub | Single 220mm disc 1 piston caliper | Single 220mm disc 1 piston caliper | Single Ø320 mm disc, 2 piston caliper | Single disc 2 piston caliper |
| Front Tyre: | 3.25 -S19" | 90/90–21 | 90/90–21 | 130/90-16 | 100/90 R16 |
| Rear Tyre: | 4.00 -S18" | 120/90–17 | 120/90–17 | 150/80-16 | 140/60 R18 |
| Seat Height: | 850 mm / 33.5" | 870 mm / 24.2 in | 870 mm / 24.2 in | 709 mm / 27.9 in | 870 mm / 30.7 in |
| Fuel Capacity: | 24 L / 6.3 US gal | 16 Litres / 4.2 US gal | 16 Litres / 4.2 US gal | 20.1 L / 5.3 US gal | 18 Litres / 4.0 US gal |