KTM 125 EXC - 2005 Specifications and Reviews

The 2005 KTM 125 EXC is a lightweight two-stroke motocross bike ideal for novice and intermediate riders transitioning into off-road competition. Its nimble 124cc single-cylinder engine and liquid-cooled design deliver responsive performance with excellent maneuverability on technical terrain. Known for reliability and affordability, the EXC excels as an entry-level cross-country and motocross platform.

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General information

CategoryCross / motocross
Year2005
ModelKTM 125 EXC
 
 

Engine and Transmission Specifications

Clutchwet multi-disc clutch, operated hydraulically
Transmission type,final driveChain
Gearbox6-speed
Cooling systemLiquid
Lubrication systemmixture oil lubrication 1:40
IgnitionKokusan digital 2K-3
Fuel systemCarburettor. Keihin PWK 38 AG
Bore x stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Compression11.0:1
Engine typeSingle cylinder, two-stroke
Capacity:124.80 ccm (7.62 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakes diameter260 mm (10.2 inches)
Rear brakesSingle disc
Front brakes diameter216 mm (8.5 inches)
Front brakesSingle disc
Rear suspension travel335 mm (13.2 inches)
Rear suspensionWP-PDS-shock absorber
Front suspensionWP-USD 48 mm (1.89´
Trail116 mm (4.6 inches)
Rake (fork angle)27.0°
Frame typechromium molybdenum

Physical measures and capacities

Fuel capacity8.50 litres (2.25 gallons)
Wheelbase1,471 mm (57.9 inches)
Ground clearance390 mm (15.4 inches)
Seat height925 mm (36.4 inches) If adjustable, lowest setting.
Dry weight98.6 kg (217.4 pounds)

Other specs

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

Performance Profile & Rider Fit

Best For

Track20%
City15%
Cornering55%
Daily Riding10%
Touring15%
Passenger5%

Rider Profile

Best ForThis is a demanding, race-bred two-stroke enduro best suited to experienced off-road riders who understand peaky power delivery and no electronic aids.
PurposeBuilt purely for competitive enduro and technical off-road riding, not for street use or general transportation.
Rider FitIts extremely light dry weight and tall seat height reward an agile, fit rider who can stand, shift body weight, and manhandle the bike over obstacles.
CharacterA raw, high-strung two-stroke with sharp, explosive power and razor-quick handling that thrives on tight trails and technical terrain.
Not Ideal ForIt is not suitable for daily commuting, highway touring, carrying a passenger, or riders seeking comfort and predictability.

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

Rider Fit Visualizer

2005 KTM 125 EXC Rider Ergonomics Assessment

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

Feet:

At 925mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2005 KTM 125 EXC, with a cramped knee angle of around 80 degrees and an upright 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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