BMW R 80GS (1989) vs Yamaha TDM 900A (2006-07)
Comparison technical specifications
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| Make: | BMW | Yamaha |
| Model: | R 80GS | TDM 900A |
| Years: | 1989 | 2006-07 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder | Four stroke, parallel twin cylinder, DOHC, 5 valves per cylinder |
| Capacity: | 797.5 cc / 48.7 cu in. | 897 cc / 54.7 cu-in |
| Bore x Stroke: | 84.8 x 70.6 mm | 92 x 67.5 mm |
| Cooling System: | Air cooled | Liquid cooled |
| Lubrication: | Wet sump | Dry sump |
| Compression Ratio: | 8.2:1 | 10.4:1 |
| Induction: | 2 x Bing constant depression carburetors | Electronic Fuel Injection |
| Ignition: | Battery ignition | TCI |
| Starting: | Electric | Electric |
| Max Power: | 37 kW / 50 hp @ 6500 rpm | 86.2 hp / 63.4kW @ 7500 rpm |
| Max Torque: | 61 Nm / 6.2 kgf-m / 44 ft lb @ 5000 rpm | 88.8 Nm / 9.1 kgf-m @ 6000 rpm |
| Clutch: | Dry single plate, with diaphragm spring | Wet, multiple-disc coil spring |
| Transmission: | 5 Speed | 6 speed |
| Final Drive: | Shaft | Chain |
| Frame: | Double loop tubular frame with bolt on rear section | Aluminium, diamond shaped |
| Front Suspension: | ∅40mm Marzocchi telescopic hydraulic forks. | Telescopic fork |
| Front Wheel Travel: | 225 mm / 8.8 in | 150 mm / 5.9 in |
| Rear Suspension: | BMW Paralever swinging arm | Swingarm Link-type |
| Rear Wheel Travel: | 180 mm / 7.0 in | 133 mm / 5.2 in |
| Front Brakes: | Single ∅285mm disc | 2 x 298mm discs with ABS |
| Rear Brakes: | ∅200mm Drum | Single 248mm disc with ABS |
| Front Tyre: | 90/90 x 21S | 120/70 ZR18 |
| Rear Tyre: | 13/80 x 17S | 160/60 ZR17 |
| Dimensions: | Length 2290 mm / 90.1 in Width 1000 mm / 39.3 in Height 1165 mm / 45.8 in | Length 2180 mm / 85.8 in Width 800 mm / 31.5 in Height 1290 mm / 50.8 in |
| Wheelbase: | 1514 mm / 59.6 in | 1485 mm / 58.5 in |
| Ground Clearance: | 200 mm / 7.87 in | 160 mm / 6.3 in |
| Seat Height: | 850 mm / 33.5 in | 825 mm / 32.5 in |
| Wet Weight: | 210 kg / 462 lbs | 223.0 kg / 491.6 lbs |
| Fuel Capacity: | 24 L / 6.3 US gal | 20 Litres / 5.2 US gal |
| Standing ¼ Mile: | 13.7 sec / 149.6 km/h / 93 mph | 12.2 sec |
| Top Speed: | 170.4 km/h / 106 mph | 216.5 km/h / 134.5 mph |