2013 KTM 50 SX Mini

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The KTM 50 SX Mini is the perfect motorcycle for the young riders from the age of three or four years. The bike weighs only 40 kg and is powered by an extremely compact, 2-stroke engine. The engine is paired with a modern automatic clutch, which helps the rider to keep the bike in check effortless. The bike is also offered with a power-reduction kit which is available from the PowerParts range. Thanks to this system, the engine’s power can be restricted to a moderate 5.5 hp.

In terms of stopping power the 2013 KTM 50 SX Mini comes with front and rear, optimally dimensioned disc brakes which are able to bring the bike to halt in no time.

On the other hand, the modern upside-down front fork from WP Suspension, with 35 mm diameter outer tubes and 185 mm suspension travel, is combined with a capable rear shock absorber to provide perfect stability and damping.

Hit the jump for more information on the 2013 KTM 50 SX Mini.


A real KTM for the smallest of future MX champions from the age of three or four years. The 40 kg, lightweight KTM 50 SX Mini model year 2013 sets standards in terms of safety, controllability and riding fun. It has everything that impresses riders up to height of 1.30 m and reassures their parents: a high-quality chassis with easily applied disc brakes, top-quality components wherever you look, a powerful, reliable engine with easy-to-operate centrifugal clutch.


The modern, extremely compact, 2-stroke engine clearly sets the benchmark in its class with its very controllable power. Equipped with a newly developed automatic clutch, the KTM 50 SX Mini 2013 even easier to master. Thanks to the 3-shaft concept, the crankshaft in the KTM engine is closer to the bike’s centre of gravity, which not only benefits the handling; it also allows a flatter and thus flow-optimised inflow angle of the intake membrane for maximum performance.

Optional Restrictor Kit

To enable adaptation of the race-ready performance of the KTM 50 SX Mini 2013 to the needs of the youngest beginners as well, a power-reduction kit is available from the PowerParts range, with which the engine can be restricted to a moderate 5.5 hp.


Both at the front and rear, optimally dimensioned disc brakes from FORMULA ensure the best possible deceleration on the 2013 KTM 50 SX Mini. The exclusive, self-cleaning Wave brake discs stand for the ultimate in race technology and outstanding safety.

Water Cooling

The KTM 50 SX Mini’s liquid-cooling system, with two large radiators and additional cooling for the crankcase, prevents the engine overheating, even under the most extreme loads. Besides that, the smallest KTM can still take a fair bit of punishment - from enemy contact to contact with the ground.

Adjustable Automatic Transmission

The new, centrifugally controlled, multi-disc automatic clutch makes riding the KTM 50 SX Mini 2013 the easiest thing in the world. Completely redesigned by KTM KTM , the 50 gram lighter clutch delivers significantly improved and more controllable acceleration. Furthermore, it can still be quickly and easily adjusted to the specific requirements of both track and rider using the "KTM clicker system" - in a matter of seconds and with no special tools required.

Wp Chassis

The high quality, upside-down front fork from WP Suspension, with 35 mm diameter outer tubes and 185 mm suspension travel, provides excellent ride stability and guarantees optimum damping properties and supreme responsiveness. At the rear wheel, a WP shock absorber hinged directly to the swingarm also supplies 205 mm suspension travel and excels with superior and reliable damping, even on the highest of jumps.


Design1-cylinder 2-stroke engine, water-cooled, with reed intake
Displacement49.0 cm³
Bore39.5 mm
Stroke40 mm
Starting aidKickstarter
TransmissionRigid 1-stage reduction gear
Engine lubricationSeparate lubrication
Primary gear ratio33:61 straight cut spur gear
Final drive10:42
Cooling systemLiquid cooling system
Clutch3-lining automatic clutch on the main shaft / centrifugal force
Ignition systemSELETTRA 2p D36
FrameCentral tube frame of chrome molybdenum steel tubing, powder-coated
ForksWP Suspension USD 35
Shock absorberWP Suspension 3614 BAEM
Suspension travel Front100 mm
Suspension travel Rear171 mm
Brake system FrontDisc brake with four-pot brake caliper
Brake system RearDisc brake with two-pot brake caliper
Brake discs - diameter Front160 mm
Brake discs - diameter Rear140 mm
Chain1/2 x 3/16”
Steering head angle67.4°
Wheel base914±10 mm
Ground clearance (unloaded)184 mm
Seat height (unloaded)558 mm
Total fuel tank capacity approx.2.0 l Unleaded premium fuel (95 RON)
Weight without fuel approx.40.5 kg

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