BMW K1 (1991-92) vs Suzuki 1981 () vs BMW R 80R (1991-94) vs BMW R 850R (1997-99) vs BMW R 100GS (1991-92)
Comparison technical specifications
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| Make: | BMW | Suzuki | BMW | BMW | BMW |
| Model: | K1 | 1981 | R 80R | R 850R | R 100GS |
| Years: | 1991-92 | 1991-94 | 1997-99 | 1991-92 | |
| Engine: | Four-stroke, horizontal in line four cylinder, DOHC, 4 valves per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. | Four stroke, two-cylinder, horizontally-opposed Boxer engine, 4 valves per cylinder | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder |
| Capacity: | 987 cc / 60.2 cu in | 1074 cc / 65.5 cu in | 797.5 cc / 48.7 cu-in | 848 cc / 51.7 cu in. | 980 cc / 59.8 cu in. |
| Bore x Stroke: | 67 x 70 mm | 72 x 66 mm | 84.8 x 70.6 mm | 87.5 x 70.5 mm | 94 x 70.6 mm |
| Compression Ratio: | 11.0:1 | 9.5:1 | 9.2:1 | 10.3:1 | 8.5:1 |
| Cooling System: | Liquid cooled | Air cooled | Air cooled | Air/Oil-cooled | Air cooled |
| Induction: | Electronic injection, Bosch Motronic | 4 x Mikuni BS34SS | 2 x Bing constant depression carburetors | Electronic injection, Bosch Motronic | 2 x Bing carburetors |
| Starting: | Electric | Electric | Electric | Electric | Electric |
| Max Power: | 72.9 kW / 100 hp @ 8000 rpm (rear tyre: 70.1 kW / 94.0 hp @ 8400 rpm) | 83.9 kW / 111 hp / @ 9500 rpm | 37 kW / 50 hp @ 6500 rpm | 53.2 kW / 73 hp @ 6750 rpm | 44 kW / 60 hp @ 6500 rpm |
| Max Torque: | 100 Nm / 10.2 kgf-m / 74 ft lb @ 6750 rpm | 97.1 Nm / 9.9 kgf-m / 70.9 lb-ft @ 6500 rpm | 61 Nm / 6.2 kgf-m / 44 ft lb @ 3750 rpm | 77 Nm / 7.85 kgf-m / 56 ft/lb @ 5600 rpm | 76 Nm / 7.75 kgf-m / 56 ft-lb @ 3750 rpm |
| Transmission: | 5 Speed | 5 Speed | 5 Speed | 5 Speed | 5 Speed |
| Final Drive: | Shaft | Chain, Daido D.I.D 630YL, 96 links | Shaft | Shaft | Shaft |
| Front Suspension: | Telescopic fork with hydraulic shock absorber | Telescopic, oil damped, spring 4-way adjustable with anti-dive | Telescopic hydraulic forks. | Motorrad Telelever, stanchion ∅35 mm, central strut, rebound damping adjustable. | Telescopic fork with hydraulic shock absorber. |
| Rear Suspension: | Monolayer swinging arm | Dual shock oil damped, damper 4-way, spring 5-way adjustable | BMW Paralever swinging arm | Die-cast aluminium single sided swinging arm with BMW Motorrad Paralever, central strut, spring preload adjustable to continuously variable levels by means of a hydraulic handwheel, rebound adjustable damping. | Paralever adjustable preload, rebound damping compression |
| Front Brakes: | 2 x 305mm discs, 4 piston calipers | 2 x 275 mm Discs, 2 piston calipers | Single 285mm disc, 1 piston caliper | 2 x ∅320mm discs, 4 piston calipers | Single ∅285mm disc, 2 piston caliper |
| Rear Brakes: | Single 285mm disc, 1 piston caliper | Single 275 mm disc, 1 piston caliper | 200mm Drum | Single ∅276mm disc, 2 piston caliper | ∅200 Drum |
| Front Tyre: | 120/70 ZR17 | 3.50 - V19 | 110/80 V18 | 120/70 - ZR17 | 90/90-21 |
| Rear Tyre: | 160/60 ZR18 | 4.50 - V17 | 140/80 V17 | 160/60 - ZR18 | 130/80-17 |
| Fuel Capacity: | 22 L / 5.8 US gal | 22 L / 5.8 US gal / 4.8 Imp gal | 24 liters / 6.27 gal | 20.5 Liters / 5.4 US gal | 24 L / 6.3 US gal |