What category is the 2020 KTM 50 SX Mini?

General information
Year	2020

Engine and Transmission Specifications
Clutch	Centrifugal clutch
Transmission type	Chain (final drive)
Gearbox	1-speed
Cooling system	Liquid
Lubrication system	Mixture oil lubrication
Ignition	Seletra 2p D36
Fuel system	Carburettor. Mikuni TMX
Bore x Stroke	39.5 x 40.0 mm (1.6 x 1.6 inches)
Engine details	Reed intake
Engine type	Single cylinder, two-stroke
Capacity:	49.0 ccm (2.99 cubic inches)

Category	Cross / motocross
Model	KTM 50 SX Mini

Brakes, suspension, Frame and wheels
Wheels	Wire spoked
Rear brakes	Single disc. Two-piston calipers.
Diameter	160 mm (6.3 inches)
Front brakes	Single disc. Four-piston calipers.
Rear wheel travel	147 mm (5.8 inches)
Rear Suspension	WP shock absorber
Front wheel travel	100 mm (3.9 inches)
Front Suspension	WP upside-down Ã˜ 35 mm
Rake (fork angle)	24.0°
Frame type	Chrome-molybdenum steel central-tube frame
Physical measures and capacities
Fuel capacity	2.10 litres (0.55 US gallons)
Wheelbase	1032 mm (40.6 inches)
Ground clearance	252 mm (9.9 inches)
Seat height	684 mm (26.9 inches) If adjustable, lowest setting.
Dry weight	40.0 kg (88.2 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Comments	The engine power can be restricted to 5.5 hp with a kit.
Starter	Kick
Color options	Orange/white/black

Performance Profile & Rider Fit

5.5 hp

Peak Power (est.)

Best For

Track30%

City2%

Cornering40%

Daily Riding3%

Touring1%

Passenger0%

Rider Profile

Best For	This machine is built exclusively for young beginner riders taking their very first steps into motocross, typically aged around four to seven years old.
Purpose	It exists purely to teach small children the basics of throttle control, balance, and off-road riding on a real motocross-style bike in a safe, controlled way.
Rider Fit	Its tiny 40 kg dry weight, low 684 mm seat height, and single-speed automatic clutch mean it demands almost no physical strength or shifting skill from its young rider.
Character	It behaves like a proper miniature motocrosser, with real suspension, a real frame, and real brakes, giving a authentic but gentle introduction to dirt bike riding.
Not Ideal For	It is completely unsuitable for adults, teenagers, road use, touring, or any rider who has outgrown beginner-level youth motocross machines.

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

Rider Fit Visualizer

Your height

Inseam (optional)

Units

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Feet:

At 684mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2020 KTM 50 SX Mini, with a cramped knee angle of around 55 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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