KTM 105 SX - 2004 Specifications and Reviews

The 2004 KTM 105 SX is a lightweight minibike designed for young and novice riders seeking an affordable entry into competitive motocross. Powered by a liquid-cooled 85cc single-cylinder engine with a 6-speed gearbox, it delivers reliable performance and easy handling. The low seat height and minimal weight make it ideal for developing fundamental riding skills and building confidence on the track.

2004
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General information

CategoryMinibike, sport
Year2004
ModelKTM 105 SX
 
 

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox6-speed
Cooling systemLiquid
Fuel systemCarburettor
Bore x stroke47.0 x 49.0 mm (1.9 x 1.9 inches)
Stroke2
Engine typeSingle cylinder
Capacity:84.93 ccm (5.18 cubic inches)

Physical measures and capacities

Wheelbase1,278 mm (50.3 inches)
Ground clearance430 mm (16.9 inches)
Alternate seat height675 mm (26.6 inches) If adjustable, highest setting.
Seat height900 mm (35.4 inches) If adjustable, lowest setting.
Dry weight68.0 kg (149.9 pounds)

KTM 105 SX dimensions and frame

Rear brakes diameter216 mm (8.5 inches)
Rear brakesSingle disc
Front brakes diameter216 mm (8.5 inches)
Front brakesSingle disc
Rear suspensionWP PDS monoshock
Front suspensionWP USD 43
Rake (fork angle)24.0°
Frame typeChromium molybdenum central-type frame

Speed and acceleration

Fuel capacity5.00 litres (1.32 gallons)
 
 

Other specs

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

Performance Profile & Rider Fit

Best For

Track70%
City5%
Cornering75%
Daily Riding5%
Touring5%
Passenger0%

Rider Profile

Best ForThis is a youth-oriented competition minibike best suited to young, developing riders progressing through motocross ranks rather than adult novices.
PurposeBuilt purely for motocross-style off-road racing and skill development, not for any road or commuting use.
Rider FitIts tiny 84.93cc displacement, ultra-light dry weight, and low-to-mid seat height make it accessible for smaller, lighter riders, typically pre-teens or young teens.
CharacterA purebred miniature race bike with premium WP suspension and a chromoly frame, offering serious motocross feel and agility in a small package.
Not Ideal ForIt is not suitable for adult riders, road use, touring, carrying passengers, or anyone seeking comfort or high top speed.

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

Rider Reviews

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