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2023 KTM 300 SX Overview
The 2023 KTM 300 SX is a cross / motocross motorcycle built around 293.2 cc of displacement. Under the tank sits a Single cylinder, two-stroke engine. The bore and stroke measures 72 x 72 mm. From a practical standpoint, the 2023 300 SX tips the scales at 99.4 kg, carries a 7.20-litre fuel tank, offers a seat height of 958 mm and spans a 1482 mm wheelbase. Scroll down for the complete 2023 KTM 300 SX spec sheet covering every technical detail from suspension travel to tyre sizes.
2023 300 SX - Pros & Cons
Strengths
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Fuel injection: The fuel injection injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
Considerations
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Tall seat height: The 958 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.
Owner Experiences & Common Issues
Throttle response and fuelling
The fuel injection on the 2023 KTM 300 SX is generally well-regarded. Some owners note a slight hesitation at small throttle openings when cold, which clears once the engine reaches operating temperature. A quick visual check of the injector connectors during routine servicing is good practice on higher-mileage examples.
300 SX - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2023 KTM 300 SX, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained 300 SX should fire up cleanly and settle to a smooth idle within a few seconds.
Oil and filter changes
Regular oil changes are the single most important maintenance task on any 300 SX. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. Always use the correct viscosity grade as specified in the owner's manual.
Fuel system care
The 300 SX's fuel injection system is durable but benefits from quality fuel and the occasional use of a fuel-system cleaner additive. If the bike has been stored for more than three months, drain and replace the fuel to prevent varnish deposits in the injectors.
2023 KTM 300 SX - Frequently Asked Questions
What engine does the 2023 KTM 300 SX have?
The 2023 KTM 300 SX uses a Single cylinder, two-stroke engine with 293.2 cc of displacement.
How much does the 2023 KTM 300 SX weigh?
The 2023 KTM 300 SX weighs 99.4 kg. This is the manufacturer's dry figure.
What is the fuel tank capacity of the 2023 KTM 300 SX?
The 2023 KTM 300 SX has a 7.20-litre fuel tank.
Is the 2023 KTM 300 SX suitable for shorter riders?
The 2023 KTM 300 SX has a seat height of 958 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.
What brakes does the 2023 KTM 300 SX have?
The 2023 KTM 300 SX uses Single disc. Brembo 2-piston floating caliper at the front and Single disc. Brembo single-piston floating calliper, brake disc at the rear.
What tyre sizes does the 2023 KTM 300 SX use?
The front tyre size on the 2023 KTM 300 SX is 1.60-21.
What fuel system does the 2023 KTM 300 SX use?
The 2023 KTM 300 SX uses Injection, providing precise fuelling across the rev range and reliable cold-start behaviour.
Key Specifications
Engine
Single cylinder, two-stroke
Weight
99.4 kg / 219.1 lbs
Fuel Capacity
7.20 litres / 1.90 US gallons
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Full 2023 KTM 300 SX Specifications
Colours
Orange/white/grey
Ground Clearance (in.)
13.9 inches
Ground Clearance (mm)
354 mm
Seat Height
958 mm / 37.7 in.
Wheelbase
1482 mm / 58.3 in.
Dry Weight
99.4 kg / 219.1 lbs
Fuel Capacity
7.20 litres / 1.90 US gallons
Stroke
2-stroke
Engine Type
Single cylinder, two-stroke
Displacement (ci)
17.89 cubic inches
Displacement (cc)
293.2 cc
Bore x Stroke (in,)
2.8 x 2.8 inches
Bore x Stroke (mm)
72.0 x 72.0 mm
CO2
64.7 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel System
Injection
Fuel Consumption
2.79 litres/100 km (35.8 km/l or 84.31 mpg)
Ignition
Vitesco Technologies EMS
Starter
Electric
Clutch
Wet, DDS multi-disc clutch, Brembo hydraulics
Final Drive
Chain (final drive)
Gearbox
5-speed
Primary Drive
X-Ring 5/8 x 1/4´ chain
Frame Type
Central double-cradle-type 25CrMo4 steel
Suspension - Front
WP XACT-USD, Ø 48 mm
Suspension - Rear
WP XACT Monoshock with linkage
Rake
26.5°
Wheel Travel - Front
300 mm / 11.8 in.
Wheel Travel - Rear
310 mm / 12.2 in.
Brakes - Front
Single disc. Brembo 2-piston floating caliper
Brakes - Rear
Single disc. Brembo single-piston floating calliper, brake disc
Tyres - Front
1.60-21
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