Honda VFR 400Z (1987) vs Honda NT 650 Bros MKI (1987-89) vs BMW R 25 (1950-51) vs Honda VF 1100C Magna V65 (1983-84)
Comparison technical specifications
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| Make: | Honda | Honda | BMW | Honda |
| Model: | VFR 400Z | NT 650 Bros MKI | R 25 | VF 1100C Magna V65 |
| Years: | 1987 | 1987-89 | 1950-51 | 1983-84 |
| Engine: | Four stroke 90°V-four cylinder, DOHC, 4 valves per cylinder | Four stroke, 52°V-Twin cylinder, SOHC, 3 valve per cylinder | Four stroke, single cylinder, pushrod operated, OHV, 2 valves per cylinder. | Four stroke, 90°V-four cylinder, DOHC, 4 valve per cylinder |
| Capacity: | 399 cc / 15.7 cu-in | 647 cc / 39.4 cu-in | 247 cc / 15.1 cu in. | 1098 cc / 66.9cu-in |
| Bore x Stroke: | 55 x 42 mm | 79 x 66 mm | 68 x 68 mm | 79.5 x 55.3 mm |
| Cooling System: | Liquid cooled | Liquid cooled | Air cooled | Liquid cooled |
| Compression Ratio: | 11.3:1 | 9.2:1 | 6.5:1 | 10.5:1 |
| Induction: | 4x 34mm Keihin CV type carburetors | 2x36mm equal pressure flat slide carburetors | 1x Bing type 1/22/28 | 4x 36mm Keihin carburetors |
| Ignition: | Digitalized full transistor ignition | Digital transistorized | Battery ignition | Digital transistorized |
| Starting: | Electric | Electric | Kick | Electric |
| Max Power: | 59 hp / 43.1 kW @ 12800 rpm | 56.1 hp / 40.9 kW @ 7897 rpm | 8.9 kW / 12 hp @ 5600 rpm | 116 hp / 84.7 kW @ 7500 rpm |
| Transmission: | 6 Speed | 5 Speed | 4 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Shaft | Shaft |
| Front Suspension: | 41mm inverted forks: preload and rebound damping | 41mm Telescopic forks | Telescopic fork | Leading-axle, air-assisted fork with 41mm forks |
| Rear Suspension: | Rising-rate monoshock: pre-load and rebound damping | Pro-arm single shock, preload and rebound damping adjustment. | Pushrod suspension, spring loaded saddle | Twin shock adjustable for spring preload rebound and compression damping |
| Rear Brakes: | Single disc 2 piston caliper | Single 276mm disc 1 piston caliper | ∅160mm Drum | Single 282mm disc 2-piston caliper |
| Front Tyre: | 100/90 R16 | 110/80-17 | 3.25 x 19" | 110/90 -18 |
| Rear Tyre: | 140/60 R18 | 150/70-17 | 3.25 x 19" | 140/80 -16 |
| Fuel Capacity: | 18 Litres / 4.0 US gal | 12 Litres / 3.2 US gal | 12 L / 3.1 US gal | 17 Litres / 4.5 US gal |