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KTM 50 SX Mini
2019Off-road

KTM 50 SX Mini

Key specifications

Engine
49 cc
Weight
40 kg
Fuel type
petrol
Fuel capacity
0.6 L
Transmission
1-speed
Seat height
27 mm
Front brakes
Single disc. Four-piston calipers.
Rear brakes
Single disc. Two-piston calipers.

Overview

Introducing the 2019 KTM 50 SX Mini, a dynamic and lightweight cross-motocross motorcycle designed specifically for young riders eager to experience the thrill of off-road racing. With its vibrant orange, white, and black color scheme, this machine not only stands out visually but also speaks to the bold spirit of KTM’s racing heritage. The 50 SX Mini is well-positioned in the youth segment, catering to aspiring motocross champions aged 4 to 10 years, making it a perfect stepping stone into the world of competitive riding. At the heart of the KTM 50 SX Mini is a powerful 49cc single-cylinder, two-stroke engine that delivers an exhilarating riding experience. With a bore and stroke of 39.5 x 40.0 mm, this engine is designed for optimal performance and responsiveness. The Mikuni TMX carburettor ensures smooth power delivery, while the liquid cooling system helps maintain consistent performance even in the heat of competition. The bike's 1-speed gearbox paired with a centrifugal clutch allows for effortless acceleration, ensuring that young riders can focus on mastering their skills without the complication of shifting gears. With an optional kit that restricts the engine power to 5.5 hp, parents can confidently introduce their children to the world of motocross. The 2019 KTM 50 SX Mini boasts an impressive array of features and technology that enhances both safety and performance. Its chrome-molybdenum steel central-tube frame provides a robust yet lightweight foundation, ensuring agility on the track. The WP upside-down front suspension, with 100 mm of travel, and the WP shock absorber at the rear with 147 mm of travel, work in harmony to absorb bumps and provide a smooth ride across varied terrains. The braking system, featuring 160 mm single discs with four-piston calipers at the front and two-piston calipers at the rear, offers reliable stopping power, giving young riders the confidence they need as they tackle their first jumps and turns. **

Pros

  • Lightweight and agile design, perfect for young riders.
  • Powerful and responsive two-stroke engine, providing exhilarating performance.
  • High-quality suspension and braking components for enhanced stability and control.

Cons

  • Limited fuel capacity of 2.10 liters may require more frequent refueling during extended rides.
  • The single-speed gearbox may limit advanced riding techniques as the rider grows.
  • As a competition-focused bike, it may not have the comfort features of a trail bike, making it less suitable for casual rides.

Technical details

Source specification data

Make
KTM
Model
50 SX Mini
Category
Cross-motocross
Starter
Kick
Comments
The engine power can be restricted to 5.5 hp with a kit.
Color Options
Orange/white/black
Clutch
Centrifugal clutch
Gearbox
1-speed
Ignition
Seletra 2p D36
Engine Type
Reed intake
Fuel System
Carburettor. Mikuni TMX
Bore X Stroke
39.5 x 40.0 mm (1.6 x 1.6 inches)
Displacement
49.00 ccm (2.99 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, two-stroke
Lubrication System
Mixture oil lubrication
Transmission Type Final Drive
Chain
Dry Weight
40.0 kg (88.2 pounds)
Seat Height
684 mm (26.9 inches) If adjustable, lowest setting.
Fuel Capacity
2.10 litres (0.55 gallons)
Ground Clearance
252 mm (9.9 inches)
Rake
24.0°
Wheels
Wire spoked
Frame Type
Chrome-molybdenum steel central-tube frame
Rear Brakes
Single disc. Two-piston calipers.
Front Brakes
Single disc. Four-piston calipers.
Rear Suspension
WP shock absorber
Front Suspension
WP upside-down Ø 35 mm
Rear Wheel Travel
147 mm (5.8 inches)
Front Wheel Travel
100 mm (3.9 inches)
Rear Brakes Diameter
160 mm (6.3 inches)
Front Brakes Diameter
160 mm (6.3 inches)

Available colors

Orange/white/black