At the heart of the 2003 KTM 125 EXC enduro - offroad motorcycle, KTM features a 124.8 cc (7.6 cu in) liquid-cooled single cylinder, two-stroke configuration. Internal engine geometry specifies a bore and stroke of 54.0 x 54.5 mm (2.1 x 2.1 inches).
On the scales, the 125 EXC measures 101.4 kg (224 lbs) dry. Rider ergonomics and chassis geometry center around a 925 mm (36.4 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,461 mm (57.5 in) wheelbase engineered for balanced agility and highway composure. The 9-liter (2.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's KTM archive, this model family spans 16 indexed model years from 2000 to 2016, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
925 mm (36.4 in)
Engine
Displacement124.8 ccm (7.62 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Bore x Stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Fuel SystemCarburettor
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Chassis
Front SuspensionWP-USD 48 MA
Front Travel300 mm (11.8 inches)
Rear SuspensionWP-PDS-shock absorber
Rear Travel335 mm (13.2 inches)
Wheelbase1461 mm (57.5 inches)
Ground Clearance390 mm (15.4 inches)
Wheels & Brakes
Front Tyre90/90-21
Rear Tyre120/90-18
Dimensions & Weight
Dry Weight101.4 kg (223.5 pounds)
Seat Height925 mm (36.4 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
