KTM 150 SX - 2013 Specifications and Reviews

The 2013 KTM 150 SX is a lightweight two-stroke motocross bike designed for young intermediate riders and smaller-framed competitors seeking an agile, nimble platform. Known for its punchy 143cc reed-valve engine and exceptional maneuverability, this machine excels in technical terrain with responsive handling and a playful power delivery that rewards smooth technique over brute force.

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General information

CategoryCross / motocross
Year2013
ModelKTM 150 SX
 
 

Engine and Transmission Specifications

Driveline14:50. Primary drive: 23:73.
ClutchWet multi-disc clutch / hydraulically operated
Transmission type,final driveChain
Gearbox6-speed
Cooling systemLiquid
IgnitionContactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan
Bore x stroke56.0 x 58.4 mm (2.2 x 2.3 inches)
Engine detailsReed intake.
Engine typeSingle cylinder, two-stroke
Capacity:143.60 ccm (8.76 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakes diameter210 mm (8.3 inches)
Rear brakesSingle disc. Two-piston calipers.
Front brakes diameter220 mm (8.7 inches)
Front brakesSingle disc. Four-piston calipers.
Rear suspension travel185 mm (7.3 inches)
Rear suspensionWP  Suspension 5018 BAVP DCC
Front suspension travel205 mm (8.1 inches)
Front suspensionWP  Suspension Up Side Down 4860 MXMA CC
Rake (fork angle)26.5°
Frame typeCentral tube frame made of chrome molybdenum steel tubing

Physical measures and capacities

Fuel capacity7.50 litres (1.98 gallons)
Wheelbase1,480 mm (58.3 inches)
Ground clearance395 mm (15.6 inches)
Seat height992 mm (39.1 inches) If adjustable, lowest setting.
Dry weight90.8 kg (200.2 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsOrange/black
StarterKick

Performance Profile & Rider Fit

Best For

Track90%
City5%
Cornering88%
Daily Riding5%
Touring5%
Passenger0%

Rider Profile

Best ForBest suited to intermediate-to-advanced off-road riders, as a small-bore two-stroke motocross machine demands active riding and precise clutch and throttle control to stay in its power band.
PurposeBuilt purely for motocross and cross-country racing on dirt tracks, not for street or commuting use.
Rider FitIts ultra-light dry weight and tall seat height favor smaller or lighter riders who can still comfortably manage the high seat and aggressive riding stance.
CharacterA high-strung, revvy two-stroke that rewards aggressive riding, quick gear changes, and an active body position with sharp, flickable handling.
Not Ideal ForNot suitable for riders wanting a comfortable, relaxed, road-going or touring motorcycle, or anyone seeking passenger capability or long-distance comfort.

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

Rider Fit Visualizer

2013 KTM 150 SX Rider Ergonomics Assessment

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

Feet:

At 992mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with cannot reach comfortably on the 2013 KTM 150 SX, 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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