Kawasaki Z 1000 / ABS (2016) vs BMW R 90S (1973-76) vs Yamaha XJ 550 (1981) vs Yamaha XJ 650 Maxim (1982)
Comparison technical specifications
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| Make: | Kawasaki | BMW | Yamaha | Yamaha |
| Model: | Z 1000 / ABS | R 90S | XJ 550 | XJ 650 Maxim |
| Years: | 2016 | 1973-76 | 1981 | 1982 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. | Four stroke, transverse four cylinder. DOHC, 2 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder, |
| Capacity: | 1043 cc / 63.6 cu-in | 898 cc / 54.8 cu in. | 528 cc / 32.2 cu-in | 653 cc / 39.8 cu-in |
| Bore x Stroke: | 77.0 x 56.0mm | 90 x 70.6 mm | 57 X 51.8 mm | 63 х 52.4 mm |
| Compression Ratio: | 11.8:1 | 9.5:1 | 9.5:1 | 9.2:1 |
| Cooling System: | Liquid cooled | Air cooled | Air cooled | Air-cooled |
| Induction: | DFI® with four 38mm Keihin throttle bodies, oval sub-throttles | 2 x slide Dell'Orto PHM 38 carburetors | 4x 28mm Mikuni carburetors | 4x 32mm Hitachi carburetors |
| Ignition: | TCBI with digital advance / electric | Kettering | Battery powered inductive | Transistorized |
| Starting: | Electric | Electric | Electric | Electric |
| Max Power: | 104.5 kW / 142 hp @ 10000 rpm | 48.8 kW / 67 hp @ 7000 rpm | 37 kW / 50 PS @ 9000 rpm | 71 hp / 51.8 kW @ 9400 rpm |
| Max Torque: | 111 Nm / 11.3 kgf.m @ 7300 rpm | 76 Nm / 7.6 kgf-m / 55 ft-lb @ 5500 rpm | 41.9 Nm / 4,3 m-kg @ 7500 rpm | 57 Nm / 42 lb-ft @ 7500 rpm |
| Transmission: | 6 Speed | 5 Speed | 6 Speed | 5 Speed |
| Final Drive: | X-ring chain | Shaft | Chain | Shaft |
| Front Suspension: | 41 mm inverted SFF-BP fork with stepless compression and rebound damping and spring preload adjustability | Telescopic fork with hydraulic shock absorber | Telescopic coil spring forks | 26mm Air assisted telescopic forks |
| Front Wheel Travel: | 120 mm / 4.7 in | 208 mm / 8.1 in | 137 mm / 5.3 in | 142 mm / 5.5 in |
| Rear Suspension: | Horizontal monoshock with stepless rebound damping, remotely adjustable spring preload | Long swinging arm with adjustable strut. | Swinging arm with dual dampers adjustable for preload | Duel Kayaba shocks, 5-way adjustable spring preload |
| Rear Wheel Travel: | 122 mm / 4.8 in | 125 mm / 4.9 in | 80 mm / 3.7 in | 97 mm / 3.8 in |
| Front Brakes: | 2x 310mm discs etal-type rotors with radial-mount 4 piston monobloc calipers and ABS | 2 x ∅260mm discs, 1 piston caliper | 2x 267mm discs | Single 300mm disc |
| Rear Brakes: | Single 250mm disc petal-type rotor with 1 piston caliper and ABS | ∅200mm Drum | 182mm Drum | Drum |
| Front Tyre: | 120/70 -R17 | 3.25 - H19 | 3.25-19 | 3.25 H19 |
| Rear Tyre: | 190/50 ZR17 | 4.00 - H18 | 110/ 90-16 | 130/90 H16 |
| Fuel Capacity: | 17 Litres / 4.5 US gal | 24 Litres / 6.3 US gal | 15 liters / 3.9 US gal | 13 Litres / 3.4 US gal |