Yamaha TDM 850 - 1998 Specifications and Reviews

The 1998 Yamaha TDM 850 is a versatile middleweight sport-tourer that appeals to riders seeking balanced performance and practicality. Powered by an 849cc liquid-cooled twin producing 80 horsepower, it excels as an all-rounder capable of spirited riding and comfortable touring. Known for its agility, reliability, and user-friendly character, the TDM suits both experienced and intermediate riders.

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General information

CategoryAllround
Year1998
ModelYamaha TDM 850

Engine and Transmission Specifications

Transmission type,final driveChain
Gearbox5-speed
Cooling systemLiquid
Valves per cylinder5
Top speed205.0 km/h (127.4 mph)
Torque77.00 Nm (7.9 kgf-m or 56.8 ft.lbs) @ 6000
Power80.00
Engine typeTwin, four-stroke
Capacity:849.00 ccm (51.81 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Front brakesDual disc
 
 

Physical measures and capacities

Seat height795 mm (31.3 inches) If adjustable, lowest setting.
Power/weight ratio0.3980 HP/kg
Dry weight201.0 kg (443.1 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
StarterElectric

Performance Profile & Rider Fit

82 hp
Peak Power
3.9s
0-60 mph
127.4 mph
Top Speed

Best For

Track40%
City65%
Cornering75%
Daily Riding72%
Touring68%
Passenger60%

Rider Profile

Best ForBest suited to riders with some prior experience who want a torquey, characterful twin without the sharp edges of a supersport.
PurposeA versatile all-rounder designed for mixed-use riding, from daily commuting to spirited backroad touring.
Rider FitA moderate seat height and manageable dry weight make it accessible to riders of average height and build.
CharacterDelivers a punchy, grunty parallel-twin feel with upright ergonomics that favor real-world usability over outright speed.
Not Ideal ForNot 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.

Rider Fit Visualizer

1998 Yamaha TDM 850 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 795mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 1998 Yamaha TDM 850, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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