Yamaha DT50X - 2009 Specifications and Reviews

The 2009 Yamaha DT50X is a lightweight supermoto designed for young riders and beginners seeking affordable urban commuting and weekend fun. Its liquid-cooled single-cylinder engine delivers modest but adequate performance for city streets and light off-road use. Known for its nimble handling and practical six-speed transmission, the DT50X remains an ideal entry-level machine combining style with reliability.

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Engine and Transmission Specifications

Gearbox6-speed
Cooling systemLiquid
Lubrication systemAutolube
StarterKick
IgnitionCDI
Bore x stroke40.3 x 39.0 mm (1.6 x 1.5 inches)
Compression12.0:1
Torque3.30
Power2.81
Stroke2
Engine typeSingle cylinder
Capacity:49.70 ccm (3.03 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,350 mm (53.1 inches)
Ground clearance317 mm (12.5 inches)
Overall width850 mm (33.5 inches)
Overall length2,000 mm (78.7 inches)
Overall height1,115 mm (43.9 inches)
Seat height870 mm (34.3 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc104.0 kg (229.3 pounds)

Yamaha DT50X dimensions and frame

Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear tyre dimensions130/70-17
Front tyre dimensions100/80-17
Rear suspension travel220 mm (8.7 inches)
Rear suspensionHydraulic shock absorber
Front suspension travel190 mm (7.5 inches)
Front suspensionTelescopic fork

Speed and acceleration

Fuel capacity6.00 litres (1.59 gallons)

CategorySuper motard
Year2009
ModelYamaha DT50X

Other specs

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

Performance Profile & Rider Fit

18 hp
Peak Power

Best For

Track30%
City70%
Cornering65%
Daily Riding55%
Touring25%
Passenger30%

Rider Profile

Best ForThis bike suits newer or lighter riders who want a small, manageable machine to build confidence on before moving to bigger motorcycles.
PurposeIt is best suited to short urban hops and light supermotard-style fun rather than serious speed or distance riding.
Rider FitIts low dry weight and modest seat height make it easy to handle and forgiving for smaller or less experienced riders.
CharacterIt has a light, flickable, playful feel typical of small-displacement supermotard-styled bikes rather than raw power or stability.
Not Ideal ForThis is not the right bike for riders wanting highway speed, long-distance touring comfort, or serious off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2009 Yamaha DT50X Rider Ergonomics Assessment

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Feet:

At 870mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with tip-toe one foot on the 2009 Yamaha DT50X, with a relaxed knee angle of around 130 degrees and a forward-leaning riding position.

Data quality: measured. 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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