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2021 KTM 50 SX Mini
2021 KTM 50 SX Mini

Specs

General Information

Manufacturer
KTM
KTM
Model Year
2021
2021
Model
50 SX Mini
50 SX Mini
Model Code
50SXMINI
50SXMINI
Color
Orange
Orange

Brakes/Wheels/Tires

Brakes
Front / Rear - 160 mm Disc
Front / Rear - 160 mm Disc

Dimensions

Weight
Without Fuel - 88.1 gal (40 kg)
Without Fuel - 88.1 gal (40 kg)
Ground Clearance
7.2 in. (184 mm)
7.2 in. (184 mm)
Seat Height
21.9 in. (558 mm)
21.9 in. (558 mm)

Drivetrain

Transmission
Single-speed automatic
Single-speed automatic
Chain
1/2 x 3/16 in.
1/2 x 3/16 in.

Engine

Engine
2-stroke
2-stroke
Cylinders
Single
Single
Displacement
49 cc
49 cc
Bore x Stroke
39.5 x 40 mm
39.5 x 40 mm
Clutch
Centrifugal (adjustable)
Centrifugal (adjustable)
Starting
Kickstarter
Kickstarter
Fuel Capacity
Approx. - 0.5 gal. (2.1 l)
Approx. - 0.5 gal. (2.1 l)

Operational

Frame
25CrMo4 steel central-tube
25CrMo4 steel central-tube
Front Suspension

XACT 35 WP Upside-Down fork, Ø 35 mm

Travel - 100 mm

XACT 35 WP Upside-Down fork, Ø 35 mm

Travel - 100 mm

Rear Suspension

XACT WP mono shock

Travel - 147 mm

XACT WP mono shock

Travel - 147 mm

Rake
67.4°
67.4°

Features

Bodywork & Graphics

  • DECALS: The 2021 KTM SX models feature the latest in-mold graphics, matching the factory-look orange frames and bodywork perfectly. They have a fast and aggressive style that screams READY TO RACE, leaving no doubt as to the bikes' high-performance intentions.

Chassis

  • FRAME: The modern frame is made from 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: Like the full-size KTM Factory racers, the 50 SX MINI has super lightweight, black anodized, aluminum rims providing the highest strength and durability. The OEM MAXXIS knobby tires grip superbly on any surface.
  • FRONT SUSPENSION: The KTM 50 SX MINI has the latest WP XACT fork, made by WP SUSPENSION. This upside-down front fork with 35 mm tube diameter and 205 mm of travel ensures outstanding comfort, damping characteristics and directional stability.
  • REAR SUSPENSION: The high quality WP XACT shock absorber is linked directly to the swingarm, providing excellent damping performance. It is fully adjustable, meaning you can set the damping perfectly to suit the rider's preference and track conditions. The shock absorber allows for 147 mm of rear wheel travel.
  • BRAKES: Both at the front and rear, state-of-the-art hydraulic disc brakes from FORMULA ensure best possible stopping power. The exclusive, self-cleaning Wave brake discs stand for the ultimate in race technology and outstanding performance.

Engine & Exhaust

  • ENGINE: The high performance cylinder, exhaust pipe and reed intake system are perfectly arranged for maximum performance, setting the standard in the highly competitive 50 cc class.
  • CLUTCH: Developed by KTM, the centrifugal multi-disc automatic clutch provides manageable acceleration and makes riding this motorcycle as easy as twisting the throttle. It can be adjusted to the specific requirements of the track and the rider in minutes and without any special tools.
  • AUTOMATIC TRANSMISSION: The centrifugally controlled, multi-disc automatic clutch developed by KTM delivers easily controllable acceleration and makes riding the KTM 50 SX MINI as easy as twisting the throttle. 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.
  • POWER REDUCTION KIT: For those future stars who are still absolute beginners, the engine power can be reduced using a kit from the PowerParts program.
  • COOLING: Like the full-size KTM range, the KTM 50 SX MINI has a liquid cooling system, which even cools the crankcase. Generously sized radiators ensure outstanding heat dissipation, ensuring extra reliability, even under extremely heavy conditions.
  • EXHAUST: The exhaust system was designed to perfectly match the characteristics of the engine, ensuring maximum output and a smooth power delivery over the entire rev range.

Ergonomics & Comfort

  • HANDLEBAR: The KTM 50 SX MINI uses a perfectly shaped handlebar made from a high-quality aluminum alloy. It provides a great feeling of control for the rider, helping with overall stability. A pad around the center brace also protects the rider from hard knocks.

Bodywork & Graphics

  • DECALS: The 2021 KTM SX models feature the latest in-mold graphics, matching the factory-look orange frames and bodywork perfectly. They have a fast and aggressive style that screams READY TO RACE, leaving no doubt as to the bikes' high-performance intentions.

Chassis

  • FRAME: The modern frame is made from 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: Like the full-size KTM Factory racers, the 50 SX MINI has super lightweight, black anodized, aluminum rims providing the highest strength and durability. The OEM MAXXIS knobby tires grip superbly on any surface.
  • FRONT SUSPENSION: The KTM 50 SX MINI has the latest WP XACT fork, made by WP SUSPENSION. This upside-down front fork with 35 mm tube diameter and 205 mm of travel ensures outstanding comfort, damping characteristics and directional stability.
  • REAR SUSPENSION: The high quality WP XACT shock absorber is linked directly to the swingarm, providing excellent damping performance. It is fully adjustable, meaning you can set the damping perfectly to suit the rider's preference and track conditions. The shock absorber allows for 147 mm of rear wheel travel.
  • BRAKES: Both at the front and rear, state-of-the-art hydraulic disc brakes from FORMULA ensure best possible stopping power. The exclusive, self-cleaning Wave brake discs stand for the ultimate in race technology and outstanding performance.

Engine & Exhaust

  • ENGINE: The high performance cylinder, exhaust pipe and reed intake system are perfectly arranged for maximum performance, setting the standard in the highly competitive 50 cc class.
  • CLUTCH: Developed by KTM, the centrifugal multi-disc automatic clutch provides manageable acceleration and makes riding this motorcycle as easy as twisting the throttle. It can be adjusted to the specific requirements of the track and the rider in minutes and without any special tools.
  • AUTOMATIC TRANSMISSION: The centrifugally controlled, multi-disc automatic clutch developed by KTM delivers easily controllable acceleration and makes riding the KTM 50 SX MINI as easy as twisting the throttle. 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.
  • POWER REDUCTION KIT: For those future stars who are still absolute beginners, the engine power can be reduced using a kit from the PowerParts program.
  • COOLING: Like the full-size KTM range, the KTM 50 SX MINI has a liquid cooling system, which even cools the crankcase. Generously sized radiators ensure outstanding heat dissipation, ensuring extra reliability, even under extremely heavy conditions.
  • EXHAUST: The exhaust system was designed to perfectly match the characteristics of the engine, ensuring maximum output and a smooth power delivery over the entire rev range.

Ergonomics & Comfort

  • HANDLEBAR: The KTM 50 SX MINI uses a perfectly shaped handlebar made from a high-quality aluminum alloy. It provides a great feeling of control for the rider, helping with overall stability. A pad around the center brace also protects the rider from hard knocks.