BMW R 80G/S (1980) vs Triumph Thruxton 1200RS (2020) vs BMW F 650CS Scarver (2001)
Comparison technical specifications
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| Make: | BMW | Triumph | BMW |
| Model: | R 80G/S | Thruxton 1200RS | F 650CS Scarver |
| Years: | 1980 | 2020 | 2001 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. | Four stroke, 270° crank angle parallel-Twin, SOCH, 4 valves per cylinder | Four stroke, single cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 797.5 cc / 48.7 cu in. | 1200 cc / 73.2 cu-in | 652 cc / 39.8 cub. in. |
| Bore x Stroke: | 84.8 x 70.6 mm | 97.6 x 80 mm | 100 x 83mm |
| Compression Ratio: | 9.2:1 | 12.06:1 | 11.5:1 |
| Induction: | 2 x Bing constant depression carburetorss | Multipoint sequential electronic fuel injection | Electronic intake / BMW engine management |
| Ignition: | Battery ignition | Digital electronic | Electronic ignition integrated with fuel management |
| Starting: | Electric & Kick | Electric | Electric |
| Max Power: | 37 kW / 50 hp @ 6500 rpm | 103 hp / 77 kW @ 7500 rpm | 37.3 kW / 50 hp @ 6800 rpm |
| Max Torque: | 56.7 Nm / 5.8 kgf-m / 41 ft lb @ 5000 rpm | 111.9 Nm / 82.6 lb-ft. @ 4250 rpm | 62.3 Nm / 6.4 kgf-m / 46 ft-lbs @ 5500 rpm |
| Clutch: | Dry single plate, with diaphragm spring | Wet, multi-plate assist clutch | Multi disc in oil bath |
| Transmission: | 5 Speed | 6 Speed | 5 Speed |
| Final Drive: | Shaft | O-ring chain | Belt |
| Frame: | Double loop tubular frame with bolt on rear section | Tubular steel cradle, Swingarm Twin-sided, aluminium – Clear anodized | Bridging consisting of steel profiles. |
| Front Suspension: | Telescopic hydraulic forks | 43mm Showa USD big piston forks, fully adjustable | ∅41mm Telescopic fork with integral brace |
| Front Wheel Travel: | 200 mm / 7.8 in | 120 mm / 4.7 in | 125 mm / 4.9 in. |
| Rear Suspension: | Monolever swinging arm | Fully adjustable Öhlins twin shocks with Piggyback reservoir | Steel swingarm with progressive shock linkage |
| Rear Wheel Travel: | 170 mm / 6.6 in | 120 mm / 4.7 in | 120 mm / 4.7 in. |
| Front Brakes: | Single ∅260mm disc | 2 x 310 mm Brembo floating discs, Brembo M50 4-piston radial monobloc calipers | Single ∅300mm disc 2 piston caliper |
| Rear Brakes: | ∅200mm Drum | Single 220 mm disc, Nissin 2-piston floating caliper | Single ∅240mm disc 1 piston caliper |
| Front Tyre: | 3.00 - 21 | 120/70 ZR17 – Pirelli Diablo Rosso Corsa | 110/70 ZR17 |
| Rear Tyre: | 4.00 - 18 | 160/60 ZR17 – Pirelli Diablo Rosso Corsa | 160/60 ZR17 |
| Dimensions: | Length 2230 mm / 87.7 in Width 820 mm / 32.3 in Height 1150 mm / 45.2 in | Length 2105 mm / 82.9 in Width 745 mm / 29.3 in Height 1030 mm / 40.6 in without mirrors | Length: 2142 mm / 84.3 in Width: 915 mm / 36 in. (incl. mirrors) Height: 1158 mm / 45.6 in. (excl. mirrors) |
| Wheelbase: | 1465 mm / 67.6 in | 1415 mm / 55.7 in | 1493 mm / 58.8 in. |
| Seat Height: | 860 mm / 33.9 in | 810 mm / 31.9 in | 780 mm / 30.7 in. |
| Fuel Capacity: | 19.5 L / 5.1 US gal | 14.5 Litres / 3.8 US Gal / 2.7 Imp gal | 15 Liters / 4 US gal. |