2021 Yamaha YZ250F vs 2023 KTM 300 SX

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
2021 Yamaha YZ250F 2021 Yamaha YZ250F

Cross / motocross

Engine
Titanium-valves
Power
N/A
Top Speed
N/A
Weight
234.0 pounds
2023 KTM 300 SX 2023 KTM 300 SX

Cross / motocross

Engine
Single cylinder, two-stroke
Power
N/A
Top Speed
N/A
Weight
N/A
Full Specifications
General
CommentsPower Tuner app.-
ColoursTeam Yamaha BlueOrange/white/grey
Warranty30 Day Limited Factory Warranty-
Dimensions
Ground Clearance (mm)335 mm354 mm
Ground Clearance (in.)13.2 inches13.9 inches
Seat Height970 mm / 38.2 in.958 mm / 37.7 in.
Wheelbase1476 mm / 58.1 in.1482 mm / 58.3 in.
Height1285 mm / 50.6 in.-
Length2174 mm / 85.6 in.-
Width826 mm / 32.5 in.-
Weights & Capacities
Oil Capacity (Quarts)0.95 US quarts-
Oil Capacity (l)0.90 litres-
Dry Weight-99.4 kg / 219.1 lbs
Fuel Capacity6.06 litres / 1.60 US gallons7.20 litres / 1.90 US gallons
Wet Weight106.1 kg / 234.0 lbs-
Performance
Mods from previous modelNew cylinder head with an improved intake port shape, new exhaust camshaft profile, a new silencer, and an updated ECU.-
Engine
Bore x Stroke (in,)3.0 x 2.1 inches2.8 x 2.8 inches
Bore x Stroke (mm)77.0 x 53.6 mm72.0 x 72.0 mm
Displacement (cc)250.0 cc293.2 cc
Displacement (ci)15.26 cubic inches17.89 cubic inches
Engine TypeSingle cylinder, four-strokeSingle cylinder, two-stroke
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)-
Stroke-2-stroke
CO2-64.7 CO2 g/km. (CO2 - Carbon dioxide emission)
Engine DetailTitanium-valves-
Fuel SystemInjection. Mikuni, 44mmInjection
Compression Ratio13.8:1-
Engine LubricationWet sump-
Fuel Consumption-2.79 litres/100 km (35.8 km/l or 84.31 mpg)
IgnitionTCI: Transistor Controlled IgnitionVitesco Technologies EMS
StarterElectricElectric
Valve System4-
Drivetrain
ClutchMultiplate wet clutchWet, DDS multi-disc clutch, Brembo hydraulics
Final DriveChain   (final drive)Chain   (final drive)
Gearbox5-speed5-speed
Primary Drive-X-Ring 5/8 x 1/4´ chain
Chassis
Frame TypeBilateral beam aluminum frameCentral double-cradle-type 25CrMo4 steel
Suspension - FrontKYB speed-Sensitive System, inverted fork: fully adjustableWP XACT-USD, Ø 48 mm
Suspension - RearKYB fully adjustable single shockWP XACT Monoshock with linkage
Rake26.0°26.5°
Trail119 mm / 4.7 in.-
Wheel Travel - Front310 mm / 12.2 in.300 mm / 11.8 in.
Wheel Travel - Rear318 mm / 12.5 in.310 mm / 12.2 in.
Wheels & Brakes
Brakes - FrontSingle disc. Hydraulic.Single disc. Brembo 2-piston floating caliper
Brakes - RearSingle disc. Hydraulic.Single disc. Brembo single-piston floating calliper, brake disc
RimsBridgestone® Battlecross tyres-
Tyres - Front80/100-211.60-21

Verdict

Winner on specs

2023 KTM 300 SX

The 2023 KTM 300 SX edges out the 2021 Yamaha YZ250F thanks to its greater ground clearance. Specifications are one part of the picture - dealer support, parts availability, and intended use all matter too.

Key Differences

2021 Yamaha YZ250F - Advantages

  • Competitive all-round: The 2021 Yamaha YZ250F matches or exceeds its rival across all measured criteria.

2023 KTM 300 SX - Advantages

  • More ground clearance: 354 mm vs 335 mm - better clearance over rocks and obstacles.

2021 Yamaha YZ250F vs 2023 KTM 300 SX - FAQs

What are the engine differences between the 2021 Yamaha YZ250F and 2023 KTM 300 SX?
The 2021 Yamaha YZ250F uses Single cylinder, four-stroke, while the 2023 KTM 300 SX is powered by Single cylinder, two-stroke. This is a fundamental difference - the 2021 Yamaha YZ250F is a four-stroke engine while the 2023 KTM 300 SX runs a two-stroke, resulting in very different power delivery, maintenance requirements, and riding character.
Which bike is better for shorter riders, the 2021 Yamaha YZ250F or the 2023 KTM 300 SX?
The 2023 KTM 300 SX has the lower seat at 958 mm, making it more accessible. The 2021 Yamaha YZ250F sits higher at 970 mm. A seat height below 800 mm suits most riders; above 820 mm shorter riders may need to tiptoe.
Which should I buy, the 2021 Yamaha YZ250F or the 2023 KTM 300 SX?
Both are strong choices. The 2021 Yamaha YZ250F has its own strengths, while the 2023 KTM 300 SX stands out for greater ground clearance. Visit dealers, arrange test rides, and factor in local parts and service costs - these often matter as much as the spec sheet.