| Attribute | Yamaha TDM 850 1999 × | Yamaha TRX 850 1999 × |
|---|---|---|
| General | ||
| Production from (year) | 1999 | 1999 |
| Make | Yamaha | Yamaha |
| Model | Yamaha TDM 850 | Yamaha TRX 850 |
| Category | Unspecified category | Naked bike |
| Engine and transmission | ||
| Engine type | Twin, four-stroke | Twin, four-stroke |
| Valves per cylinder | 5 | 5 |
| Displacement (cm³) | 849 | 849 |
| Power (kw) | 58.4 | 60.6 |
| Fuel consumption (l/100km) | 0.57 | 0.58 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | 80 | 87 |
| Bore (mm) | 89.5 | 89.5 |
| Stroke (mm) | 67.5 | 67.5 |
| Gearbox | 5-speed | 5-speed |
| Greenhouse gases | 13.2 CO2 g/km. (CO2 - Carbon dioxide emission) | 13.5 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Compression | 10.5:1 | 10.5:1 |
| Chassis | ||
| Front brakes | Dual disc | Dual disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 245 | 245 |
| Front tyre | 110/80-ZR18 | 120/60-ZR17 |
| Rear tyre | 150/70-ZR17 | 160/60-ZR17 |
| Front wheel travel (mm) | 149 | 120 |
| Rear wheel travel (mm) | 140 | 130 |
| Other | ||
| Starter | Electric | Electric |
| Dimensions | ||
| Wheelbase (mm) | 1,470 | 1,435 |
| Kerb weight (kg) | 234.5 | 209 |
| Seat height (mm) | 800 | 800 |
| Front percentage of weight | 49 | 48.4 |
| Performance | ||
| Top speed (km/h) | 202 | 218 |
| Acceleration 0-100 km/h (s) | 3.8 | 3.7 |
| Fuel capacity (l) | 20 | 18 |