KTM 250 SX

2021 KTM 250 SX Specs, Top Speed, Price, & Images

KTM has launched the latest model of its two-stroke motocrosser, the 250 SX. The new model comes in a fresh paint scheme and updated graphics. The KTM 250 SX comes with a quarter-litre 2-stroke engine that is capable of churning out an amazing performance. This two-stroke motocrosser is among the best performing bikes in its class.

KTM 250 SX Top Speed, Specifications, & Price


KTM 250 SX Key Specifications

Price$ 8,499 USD
Engine 250 cc 2-Stroke
Transmission 5-Speed
Power41.1 HP
Mileage 20-22 km/l
Dry Weight95.5 kg
Emission Type– –


  • Lightweight Double Cradle Type Frame
  • WP XACT-USD Inverted Forks
  • WP XACT Rear Mono-Shock
  • Brembo Hydraulics DDS Clutch
  • Kokusan Engine Management System
  • Mikuni TMX Carburetor
  • Dunlop Geomax-MX33 Tires
  • NEKEN Aluminium Tapered Handlebar
  • Twin Valve Power Valve System
  • 5-Speed Gearbox
  • Lateral Balancer Shaft

KTM 250 SX Review

The 250 SX comes with a 250 cc single-cylinder, two-stroke engine. It runs on a 5-speed manual transmission and its high-performance 2-stroke engine offers phenomenal performance. The KTM 250 SX top speed is 85 mph (est) and it one of the fastest bikes in the quarter-litre motocross segment. It uses a Kokusan engine management system and it also comes with DDS multi-disc Brembo hydraulic clutch.

KTM 250 SX Top Speed

It comes with 48 mm WP XACT USD front forks that offer wheel travel of 310 mm and it gets a WP XACT mono-shock at the rear that has wheel travel of 300 mm. This MX bike uses a very lightweight central double cradle type frame and its dry weight is only 95.5 kg. The KTM 250 SX seat height is 950 mm and it has a ground clearance is 375 mm.

Price & Competition

This 2-stroke motocross bike carries a premium price tag. Its MSRP in the united states market is $ 8,499 excluding the destination charges. It competes with the Yamaha YZ250X, Kawasaki KX250 and Husqvarna TC 250 in the 250cc class.

Related Bikes

Honda XR650LYamaha YZ125

KTM 250 SX Specifications

Engine & Transmission

Engine TypeTwo-Stroke, Single-Cylinder, Liquid-Cooled, DOHC
Engine Displacement250cc
No. of Cylinders1
Fuel TypePetrol
Fuel SupplyMikuni Carburetor
Cooling SystemLiquid-Cooling
Bore 72 mm
Stroke66.4 mm
Compression Ratio14.4:1
Valves Per Cylinder2
Starting Kick Starter
Ignition Digital
Transmission 5-Speed
ClutchWet Multi-Plate
Final DriveChain

Top Speed Performance, & Mileage

Power 41.1 HP @ 13,700 rpm
Torque91.1 lb-ft @ 9,100 rpm
Top SpeedThe KTM 250 SX top speed is approximately 85 mph
Mileage22-24 km/l
0-100 mph

Chassis & Suspension

Body TypeMotocross
ChassisCentral Double-Cradle-Type 25CrMo4 Steel
Front Suspension48 mm WP XACT-USD
Rear Suspension WP XACT Mono-Shock
Front Wheel Travel12.1 inch
Rear Wheel Travel11.8 inch

Brakes, Wheels, & Tires

Front BrakeBrembo 2-Piston Caliper Disc
Rear BrakeBrembo 1-Piston Caliper Disc
Front Brake Diameter260 mm
Rear Brake Diameter220 mm
Front Wheel21 Inch Spoke Rim
Rear Wheel19 Inch Spoke Rim
Tire TypeTube Type
Front Tire Size80/100-21
Rear Tire Size110/90-19

Dimension & Capacity

Wheelbase 58.5 in
Seat Height 950 mm
Ground Clearance375 mm
Fuel Tank Capacity7.5 l
Seating Capacity1

Electricals & Lighting

Battery TypeMF
Battery Capacity12V
Pilot LightsNo
Taillights No
Turn Signals No
Pass LightNo

Instrument Console & Speedometer

Console TypeNo Instrument Console
Trip MeterNo
No. of Trip MetersNo
Fuel GaugeNo
Gear Shift LightNo
Gear Position Indicator No
Low Fuel Indicator No
Engine Temperature IndicatorNo
Service Indicator No

Other Features

Electric StarterNo
Engine kill SwitchNo
Stand Alarm No
Stepped SeatNo
Pillion SeatNo
Pillion GrabrailsNo
Pillion Footrest No
Underseat StorageNo
Additional Features30-Day Limited Waranty

KTM 250 SX Final Verdict

The 250 SX is absolute madness, it is lightweight and its engine is powerful. This two-stroke motocrosser offers an enthralling performance. The new model looks exciting and comes fitted with top-class equipment. KTM 250 SX is one of the most powerful and lightest bikes in its class.

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