What category is the 2021 KTM 50 SX Factory?

The 2021 KTM 50 SX Factory has a Category of Minibike, cross.

What is the engine size of the 2021 KTM 50 SX Factory?

The 2021 KTM 50 SX Factory has a Capacity: of 49.8 ccm (3.04 cubic inches).

What type of engine does the 2021 KTM 50 SX Factory have?

The 2021 KTM 50 SX Factory has a Engine type of Single cylinder, two-stroke.

How many gears does the 2021 KTM 50 SX Factory have?

The 2021 KTM 50 SX Factory has a Gearbox of Automatic.

How much does the 2021 KTM 50 SX Factory weigh?

The 2021 KTM 50 SX Factory has a Dry weight of 41.5 kg (91.5 pounds).

What is the seat height of the 2021 KTM 50 SX Factory?

The 2021 KTM 50 SX Factory has a Seat height of 665 mm (26.2 inches) If adjustable, lowest setting..

KTM 50 SX Factory - 2021 Specifications and Reviews

Name: 2021 KTM 50 SX Factory
Brand: KTM

The 2021 KTM 50 SX Factory is a high-performance minibike designed for young riders and beginners entering competitive motocross. Powered by a potent 49.8cc two-stroke engine with DOHC technology and an FMF silencer, it delivers sharp throttle response ideal for learning racecraft. Known for its rigid central-tube frame, advanced WP suspension, and professional-grade components, this bike punches above its weight class for serious youth competition.

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2021

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Engine and Transmission Specifications
Exhaust system	FMF silencer
Clutch	Centrifugal
Transmission type	Chain (final drive)
Gearbox	Automatic
Ignition	Seletra 2p D36 EMS
Fuel control	Double Overhead Cams/Twin Cam (DOHC)
Bore x Stroke	39.5 x 40.0 mm (1.6 x 1.6 inches)
Engine type	Single cylinder, two-stroke
Capacity:	49.8 ccm (3.04 cubic inches)


Category	Minibike, cross
Year	2021
Model	KTM 50 SX Factory
Brakes, suspension, Frame and wheels
Wheels	Dunlop Geomax MX 53 tires
Rear brakes	Single disc
Diameter	160 mm (6.3 inches)
Front brakes	Single disc
Rear wheel travel	185 mm (7.3 inches)
Rear Suspension	XACT WP mono shock
Front wheel travel	205 mm (8.1 inches)
Front Suspension	XACT 35 WP Upside-Down fork, Ã˜ 35 mm
Rake (fork angle)	24.0°
Frame type	Central-tube frame with double-cradle
Physical measures and capacities
Fuel capacity	2.30 litres (0.61 US gallons)
Ground clearance	252 mm (9.9 inches)
Seat height	665 mm (26.2 inches) If adjustable, lowest setting.
Dry weight	41.5 kg (91.5 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Starter	Kick
Color options	White/Orange/Blue/Red

Performance Profile & Rider Fit

Best For

Track80%

City5%

Cornering75%

Daily Riding10%

Touring5%

Passenger0%

Rider Profile

Best For	This machine is built exclusively for young beginner riders aged roughly 4 to 10, not for adults or experienced motorcyclists.
Purpose	It is a purpose-built entry-level motocross minibike designed to teach children the fundamentals of off-road riding in a controlled, race-oriented package.
Rider Fit	Its tiny 42.8 kg dry weight, low 653 mm seat height, and automatic clutch make it physically manageable for small children with limited strength and experience.
Character	The two-stroke engine, automatic centrifugal clutch, and factory-spec WP suspension give it a light, playful, eager-to-turn character suited to learning MX tracks.
Not Ideal For	It is not suitable for adult riders, road use, touring, or carrying a passenger.

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

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Rider Reviews

Total comments: 1

MotorcycleDB Review

The 2021 KTM 50 SX Factory is a top-of-the-line motocross bike for young riders. With its lightweight and agile design, this motorcycle offers impressive performance on the track. The bike is equipped with a powerful 2-stroke engine, hydraulic clutch, and fully adjustable suspension, making it a competitive choice for young riders looking to take their skills to the next level. The KTM 50 SX Factory also features a race-inspired graphics package, adding a stylish touch to its high-performance capabilities. Overall, the 2021 KTM 50 SX Factory is a solid choice for young motocross enthusiasts looking for a high-performance bike. With its advanced features and race-ready design, this motorcycle offers an exhilarating riding experience for young riders looking to compete at a high level. Whether you're an aspiring young racer or simply enjoy the thrill of motocross, the KTM 50 SX Factory is sure to impress with its performance and style.