KTM 125 EXC - 2009 Specifications and Reviews

The 2009 KTM 125 EXC is a lightweight enduro machine ideal for novice and intermediate off-road riders seeking reliability and maneuverability. Powered by a liquid-cooled single-cylinder engine with smooth power delivery, it excels in technical terrain and serves as an excellent platform for learning advanced riding skills. Known for durability and KTM's proven off-road heritage, this 125cc is perfect for recreational trail riding and entry-level competition.

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General information

CategoryEnduro / offroad
Year2009
ModelKTM 125 EXC

Engine and Transmission Specifications

ClutchWet multi-disc clutch, operated hydraulically
Transmission typefinal driveChain
Gearbox6-speed
Cooling systemLiquid
Lubrication systemMixture oil lubrication 1:60
StarterKick
IgnitionKokusan
Fuel systemCarburettor. Keihin PWK 36 S AG
Bore x stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Stroke2
Engine typeSingle cylinder
Capacity:124.80 ccm (7.62 cubic inches)

Physical measures and capacities

Wheelbase1,471 mm (57.9 inches)
Ground clearance390 mm (15.4 inches)
Seat height985 mm (38.8 inches) If adjustable, lowest setting.
Dry weight97.0 kg (213.8 pounds)
 
 

KTM 125 EXC dimensions and frame

Rear brakesSingle disc
Front brakesSingle disc
Rear tyre dimensions120/90-18
Front tyre dimensions90/90-21
Rear suspension travel335 mm (13.2 inches)
Rear suspensionWP PDS shock absorber
Front suspension travel300 mm (11.8 inches)
Front suspensionWP USD
Rake (fork angle)27.0°
Frame typeCentral double-cradle-type 25CrMo4 steel
 
 

Speed and acceleration

Fuel capacity9.50 litres (2.51 gallons)

Other specs

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

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

2009 KTM 125 EXC Rider Ergonomics Assessment

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

Feet:

At 985mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2009 KTM 125 EXC, with a moderate knee angle of around 90 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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