27 July. Monday 2026
Yamaha TDM 850 - 1991 Specifications and Reviews
The 1991 Yamaha TDM 850 is a versatile all-rounder powered by a liquid-cooled 849cc parallel twin producing 78 horsepower. Best known for its practical comfort and reliable performance, it suits riders seeking a balanced middleweight capable of both commuting and casual touring. Its lightweight frame and manageable weight make it accessible to experienced riders of varying skill levels.
General information | |
| Category | Allround |
| Year | 1991 |
| Model | Yamaha TDM 850 |
| | |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Chain |
| Gearbox | 5-speed |
| Cooling system | Liquid |
| Fuel control | DOHC |
| Valves per cylinder | 5 |
| Bore x stroke | 89.5 x 67.5 mm (3.5 x 2.7 inches) |
| Compression | 9.2:1 |
| Power | 78.00 |
| Stroke | 4 |
| Engine type | Twin |
| Capacity: | 849.00 ccm (51.81 cubic inches) |
Physical measures and capacities | |
| Weight incl. oil, gas, etc | 230.0 kg (507.1 pounds) |
Yamaha TDM 850 dimensions and frame | |
| Rear brakes | Single disc |
| Front brakes | Dual disc |
| Rear tyre dimensions | 150/70-17 |
| Front tyre dimensions | 110/80-18 |
Speed and acceleration | |
| Top speed | 207.0 km/h (128.6 mph) |
| | |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Fuel capacity | 18.00 litres (4.76 gallons) |
Performance Profile & Rider Fit
82 hp
Peak Power
3.9s
0-60 mph
Best For
Track40%
City65%
Cornering75%
Daily Riding72%
Touring68%
Passenger60%
Rider Profile
| Best For | Best suited to riders with some prior experience who want a torquey, characterful twin without the sharp edges of a supersport. |
| Purpose | A versatile all-rounder designed for mixed-use riding, from daily commuting to spirited backroad touring. |
| Rider Fit | A moderate seat height and manageable dry weight make it accessible to riders of average height and build. |
| Character | Delivers a punchy, grunty parallel-twin feel with upright ergonomics that favor real-world usability over outright speed. |
| Not Ideal For | Not the right choice for riders seeking serious off-road capability or cutting-edge sportbike performance. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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