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You are here: TMW -- 2017 Motorcycle Models -- KTM -- 2017 KTM 50 SX Review

2017 KTM 50 SX Review
Back to the 2017 KTM Motorcycle Model Review Page

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2017 KTM 50 SX
2017 KTM 50 SX

2017 KTM 50 SX
2017 KTM 50 SX

2017 KTM 50 SX
2017 KTM 50 SX



2017 KTM 50 SX Review

2017 KTM 50 SX on www.Totalmotorcycle.com

Never Too Young to Learn...

50 SX is a true READY TO RACE 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 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 year’s model features revolutionary WP AER 35 front forks, fully adjustable rear suspension, a new exhaust, ultra cool graphics and a lot of detail improvements that make going fast, fun. And safe.

 

 



2017 KTM 50 SX www.Totalmotorcycle.com Key Features

KTM ANNOUNCES MY2017 SPORTMINICYCLE RANGE

At a recent event in Las Vegas, as part of the Supercross series that was won by Red Bull KTM factory rider and back-to-back 450 Supercross Champion, Ryan Dungey, the new ‘Minis’ were unveiled with some exciting changes. For model year 2017 the 50 SX and 65 SX will receive the brand new AER 35 forks by WP Suspension, which is an incredible step forward in terms of air fork technology for junior motorcycles. This revolutionary technology allows the bikes to be adjusted easily for the growing rider with a simple fork pump. These models also boast a fully adjustable shock absorber, new exhaust system, an hourmeter and new graphics in the style of the ‘grown up’s bikes’, which allows these exciting READY TO RACE quality bikes step out as the benchmark in terms of junior machines.

The KTM 50 SX is a true KTM for young motocross riders at the entry level of the sport. With its steady, controllable power and an automatic clutch, the 50 SX is ideal for the budding motocross racer. Its bigger brother, the KTM 65 SX, is a fully-fledged piece of racing kit for youngsters, and sets the standard in terms of power, riding dynamics, equipment and craftsmanship.

The biggest machine in the junior range is the class-leading KTM 85 SX, which is available in both small wheel and big wheel guises. For MY2017 this machine retains its traditional sprung forks, but detail changes have further improved this ever-popular, class-leading READY TO RACE machine.

“It gives us great satisfaction to bring some major updates to the Sportminicycle range. Of course the biggest changes are in the suspension for the 50 SX and 65 SX, which now receive the brilliant, revolutionary WP AER 35 front fork system. This means that as a young rider is growing, the spring rate can be easily adjusted, as can the setting of the bike for different tracks and terrain. In the rear of the bike is a fully adjustable shock absorber, as well as other detail improvements throughout these small machines providing the very best quality for young riders,” said KTM Offroad Product Manager, Joachim Sauer.

“It gives us a lot of pride to see young riders embrace the orange family, giving them the feeling of quality equipment from a young age for those who enjoy riding for fun as well as those that go on to be professional athletes,” concluded Sauer.


 

2017 KTM 50 SX www.Totalmotorcycle.com Features and Benefits

CHASSIS


SWINGARM
The 50 SX is fitted with a lightweight cast aluminum swingarm. Conceived using the latest in calculation and simulation software, the design and wall thickness have been made for minimum weight at optimum stiffness and precisely defined flexibility. In addition it features a robust 2-compound chain guide similar to the full-size models.


FRONT SUSPENSION
The new 50 SX is the first model in its class fitted with a modern, fully adjustable air fork: the AER 35, made by WP Suspension. Beside a massive weight reduction of 1.6 pounds, the newly developed upside-down front forks with 35mm tube diameter and 205mm of travel ensure 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 and simply to the rider’s weight just with an air fork pump.


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


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.


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.

 

CUTTING-EDGE 2-STROKE TECHNOLOGY


ENGINE
The modern, extremely compact 2-stroke engine fitted with an automatic clutch sets the standard in its class with improved power due to a new exhaust pipe. Thanks to the 3-shaft design, the crankshaft is close to the bike’s center of gravity. This does not just benefit the handling, but also allows for a flow-optimized intake angle into the reed valve – a prerequisite for maximum performance.


POWER REDUCTION KIT
For absolute beginners the engine power can be reduced to a moderate 5.5hp using a kit from the PowerParts catalog.


EXHAUST
A newly developed exhaust pipe provides a higher output and a smoother power delivery over the entire rev range, making the new 50 SX even more competitive than before.


CYLINDER
The high performance cylinder features a pressure controlled exhaust valve (PCEV) and provides an unrivaled performance within the highly competitive 50 cc class.


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.

 

IMPROVED ERGONOMICS


BODYWORK
The bodywork is derived from the full-size SX models and provides perfect ergonomics with 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.


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.


GRAPHICS
Derived from the full-size SX bikes, the graphic design makes the new 50 SX look even cooler. Its frame has a super rugged polymer coating in black.


HANDLEBARS
Made of high quality aluminum alloy, the handlebars offer top stability and safety. A crash pad on the handlebar brace protects from unintended contact.


RADIATOR
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.

 



 

2017 KTM 50 SX - www.Totalmotorcycle.com USA Specifications/Technical Details
US MSRP Price: $ See Dealer for Pricing in USD

Engine

Design

1-cylinder, 2-stroke engine

Displacement

49 cm³

Bore

39.5 mm

Stroke

40 mm

Starter

Kickstarter

Transmission

Single-speed automatic

Primary drive

61:33:00

Secondary gear ratio

11:40

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 shock absorber

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 °

Wheelbase

1032 ± 10 mm

Ground clearance

252 mm

Seat height

684 mm

Tank capacity (approx.)

2.3 l

Weight READY TO RACE (without fuel)

41.5 kg




 


 

2017 KTM 50 SX - www.Totalmotorcycle.com Canadian Specifications/Technical Details
Canada MSRP Price: $ See Dealer for Pricing in CDN

Engine

Design

1-cylinder, 2-stroke engine

Displacement

49 cm³

Bore

39.5 mm

Stroke

40 mm

Starter

Kickstarter

Transmission

Single-speed automatic

Primary drive

61:33:00

Secondary gear ratio

11:40

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 shock absorber

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 °

Wheelbase

1032 ± 10 mm

Ground clearance

252 mm

Seat height

684 mm

Tank capacity (approx.)

2.3 l

Weight READY TO RACE (without fuel)

41.5 kg





 

2017 KTM 50 SX - www.Totalmotorcycle.com European Specifications/Technical Details
Europe/UK MSRP Price: £3199 GBP (On The Road inc 20% Vat)

Engine

Design

1-cylinder, 2-stroke engine

Displacement

49 cm³

Bore

39.5 mm

Stroke

40 mm

Starter

Kickstarter

Transmission

Single-speed automatic

Primary drive

61:33:00

Secondary gear ratio

11:40

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 shock absorber

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 °

Wheelbase

1032 ± 10 mm

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.



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