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Moorooka KTM

Home / Bikes /MX / 50 SX

50 SX

ktm-50-sx

NEVER TOO YOUNG TO LEARN

The KTM 50 SX is a true KTM for young MX riders aged from around 4 to 10 years old and up to a body height of 1.30m. It is a genuine dirt bike that, like its bigger siblings, is produced with top-quality components. This makes the KTM 50 SX the first choice as a stepping stone into the world of MX or for the first racing step on the ladder. With the youngster in mind this package has an engine that delivers steady, controllable power, incorporating an automatic clutch that is ideal for novice riders. This model features a revolutionary WP AER 35 front fork, fully adjustable rear suspension, ultra cool graphics and the ability to make going fast, fun. And safe.

ENGINE & EXHAUST

The high performance cylinder sets in conjunction with the pipe and reed intake system the performance standard within the highly competitive 50cc class.

CLUTCH

CLUTCH

Developed by KTM, the centrifugal multi-disc automatic clutch provides manageable acceleration and makes riding this motorcycle the easiest thing in the world. It can be adjusted to the specific requirements of the track and the rider in minutes and without any special tools.

COOLING

COOLING

Like the big KTM bikes, the 50 SX has a liquid cooling system, which even cools the crankcase. Generously sized radiators ensure outstanding heat dissipation for high reliability, even under extremely heavy duty.

EXHAUST

EXHAUST

The exhaust system provides a high output and a smooth power delivery over the entire rev range.

CHASSIS

KTM engineers just love dropping weight year after year. The result: the 2019 KTM SX models are the slimmest, lightest dirt bikes out there.

FRAME

FRAME

The modern frame produced by WP Performance Systems is made of lightweight, high strength chromoly steel profiles and combines maximum longitudinal stiffness with optimum torsional rigidity. It guarantees easy handling and precise cornering, but also outstanding stability.

WHEELS

WHEELS

Like the big KTM factory racers, the 50 SX has super lightweight, black anodized, aluminum rims providing highest strength and safety. The OEM knobbly MAXXIS tires grip superbly on any surface.

FRONT SUSPENSION

FRONT SUSPENSION

The KTM 50 SX has a modern, fully adjustable air fork: the WP AER 35, made by WP Suspension. This upside-down front fork with 35mm tube diameter and 205mm of travel ensures outstanding comfort, damping characteristics and directional stability. Another main benefit for junior riders is that the air spring fitted in the left fork leg can be adjusted perfectly to the rider's weight just with a simple air fork pump.

REAR SUSPENSION

REAR SUSPENSION

On the rear wheel a WP shock absorber linked directly to the swingarm provides excellent damping performance and is fully adjustable in order set the damping perfectly to rider's preferences and track conditions. The rear wheel travel is 185mm.

BRAKES

BRAKES

The 50 SX is fitted with front and rear hydraulic brakes by Formula combined with lightweight wave discs that are easy to control even for the youngest riders. This ensures the best deceleration and the highest standard when it comes to safety.

ERGONOMICS & COMFORT

READY TO RACE ergonomics give you the edge on the track, ride harder for longer.

HANDLEBAR

HANDLEBAR

The ergonomic Renthal handlebar made from a high-quality aluminum alloy ensures the highest levels of stability and safety. A Renthal crash pad around the centre brace protects the rider from hard knocks.

BODYWORK & GRAPHICS

The bodywork is derived from the full-size SX models and provides perfect ergonomics, well thought-out contact points for the rider and maximum freedom of movement. In addition, smart design solutions for the new front and rear fenders are prime examples of an intelligent design, which guarantees maximum stability through a well thought-out structure and mounting.

DECALS

DECALS

The 2019 SX models feature the latest in-mold graphics, matching the factory-look orange frames and new bodywork perfectly. They have a fast and aggressive style that screams READY TO RACE, leaving no doubt as to the bikes' high-performance intentions.

SOFTWARE & ELECTRONICS

The latest technology, reduced to the minimum: READY TO RACE

Engine

  • Design

    1-cylinder, 2-stroke engine

  • Displacement

    49 cm³

  • Bore

    39.5 mm

  • Stroke

    40 mm

  • Starter

    Kickstarter

  • Transmission

    Single speed transmission

  • Clutch

    Centrifugal clutch (adjustable)

  • EMS

    Seletra 2p D36

Chassis

  • Frame design

    Central-tube frame with double-cradle

  • Front suspension

    WP-USD, AER 35, Ø 35 mm

  • Rear suspension

    WP Monoshock

  • Suspension travel (front)

    205 mm

  • Suspension travel (rear)

    185 mm

  • Front brake

    Disc brake

  • Rear brake

    Disc brake

  • Front brake disc diameter

    160 mm

  • Rear brake disc diameter

    160 mm

  • Chain

    1/2 x 3/16"

  • Steering head angle

    66 °

  • Ground clearance

    252 mm

  • Seat height

    684 mm

  • Tank capacity (approx.)

    2.3 l

  • Weight READY TO RACE (without fuel)

    41.5 kg

The illustrated vehicles may vary in selected details from the production models and some illustrations feature optional equipment available at additional cost.
All information concerning the scope of supply, appearance, services, dimensions and weights is non-binding and specified with the proviso that mistakes, printing, setting and typing errors may occur; such information is subject to change without notice.