Honda VFR 400Z (1987) vs BMW R 80G/S (1980)
Comparison technical specifications
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| Make: | Honda | BMW |
| Model: | VFR 400Z | R 80G/S |
| Years: | 1987 | 1980 |
| Engine: | Four stroke 90°V-four cylinder, DOHC, 4 valves per cylinder | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. |
| Capacity: | 399 cc / 15.7 cu-in | 797.5 cc / 48.7 cu in. |
| Bore x Stroke: | 55 x 42 mm | 84.8 x 70.6 mm |
| Cooling System: | Liquid cooled | Air cooled |
| Compression Ratio: | 11.3:1 | 9.2:1 |
| Induction: | 4x 34mm Keihin CV type carburetors | 2 x Bing constant depression carburetorss |
| Ignition: | Digitalized full transistor ignition | Battery ignition |
| Spark Plug: | NGK ER9EH | Bosch W 7 D / Beru14-7DU / Champion N9YC |
| Starting: | Electric | Electric & Kick |
| Max Power: | 59 hp / 43.1 kW @ 12800 rpm | 37 kW / 50 hp @ 6500 rpm |
| Max Torque: | 39 Nm / 4.0 kgf-m / 28.8 lb-ft @ 10000 rpm | 56.7 Nm / 5.8 kgf-m / 41 ft lb @ 5000 rpm |
| Clutch: | Wet, cable operated | Dry single plate, with diaphragm spring |
| Transmission: | 6 Speed | 5 Speed |
| Final Drive: | Chain | Shaft |
| Frame: | Twin-spar aluminum | Double loop tubular frame with bolt on rear section |
| Front Suspension: | 41mm inverted forks: preload and rebound damping | Telescopic hydraulic forks |
| Rear Suspension: | Rising-rate monoshock: pre-load and rebound damping | Monolever swinging arm |
| Front Brakes: | 2x 269mm 4 piston calipers | Single ∅260mm disc |
| Rear Brakes: | Single disc 2 piston caliper | ∅200mm Drum |
| Front Tyre: | 100/90 R16 | 3.00 - 21 |
| Rear Tyre: | 140/60 R18 | 4.00 - 18 |
| Dimensions: | Height 1075 mm / 42.3 in Length 1985 mm / 78.1 in | Length 2230 mm / 87.7 in Width 820 mm / 32.3 in Height 1150 mm / 45.2 in |
| Wheelbase: | 1345 mm / 53.0 in | 1465 mm / 67.6 in |
| Seat Height: | 870 mm / 30.7 in | 860 mm / 33.9 in |
| Fuel Capacity: | 18 Litres / 4.0 US gal | 19.5 L / 5.1 US gal |