Yamaha XT125X - 2008 Specifications and Reviews

The 2008 Yamaha XT125X is a lightweight supermoto designed for novice riders and urban commuters seeking an agile, manageable machine. Its compact 124cc air-cooled single-cylinder engine delivers modest power ideal for learning fundamental riding skills. Best known for its nimble handling and low seat height, the XT125X excels in tight city environments and off-road exploration.

2008
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General information

CategorySuper motard
Year2008
ModelYamaha XT125X

Engine and Transmission Specifications

ClutchWet, multiple disc
Transmission typefinal driveChain
Gearbox5-speed
Cooling systemAir
Lubrication systemWet sump
StarterElectric
IgnitionCDI
Bore x stroke54.0 x 54.0 mm (2.1 x 2.1 inches)
Compression10.0:1
Torque9.50
Power9.78
Stroke4
Engine typeSingle cylinder
Capacity:124.00 ccm (7.57 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,335 mm (52.6 inches)
Ground clearance190 mm (7.5 inches)
Overall width860 mm (33.9 inches)
Overall length2,110 mm (83.1 inches)
Overall height1,130 mm (44.5 inches)
Seat height830 mm (32.7 inches) If adjustable, lowest setting.
Dry weight106.0 kg (233.7 pounds)
 
 

Yamaha XT125X 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 travel120 mm (4.7 inches)
Rear suspensionMonocross
Front suspension travel130 mm (5.1 inches)
Front suspensionHydraulic telescopic forks
Frame type-

Speed and acceleration

Power/weight ratio0.0923 HP/kg

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity10.00 litres (2.64 gallons)

Performance Profile & Rider Fit

9.8 hp
Peak Power

Best For

Track25%
City85%
Cornering75%
Daily Riding65%
Touring20%
Passenger20%

Rider Profile

Best ForThis is an ideal machine for beginners or learner-permit riders taking their first steps into supermoto-style riding.
PurposeBuilt for light, nimble urban commuting and playful low-speed cornering rather than outright performance.
Rider FitIts very low weight and accessible seat height make it easy to manage for smaller or less experienced riders.
CharacterA small, sprightly single-cylinder machine that rewards flickable handling over raw speed.
Not Ideal ForThis is not the bike for highway touring, carrying a passenger comfortably, or riders seeking strong acceleration.

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

Rider Fit Visualizer

2008 Yamaha XT125X Rider Ergonomics Assessment

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

Feet:

At 830mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with balls of both feet on the 2008 Yamaha XT125X, with a relaxed knee angle of around 125 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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