2018 KTM 125 SX vs 2023 Yamaha YZ250

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
2018 KTM 125 SX 2018 KTM 125 SX

Cross / motocross

Engine
Single cylinder, two-stroke
Power
N/A
Top Speed
N/A
Weight
87.2 kg / 192.2 lbs
2023 Yamaha YZ250 2023 Yamaha YZ250

Cross / motocross

Engine
Single cylinder, two-stroke
Power
N/A
Top Speed
N/A
Weight
227.0 pounds
Full Specifications
General
ColoursOrange/white/blackTeam Yamaha Blue
Warranty-30 Day Limited Factory Warranty
Dimensions
Length (mm)-2184 mm
Width (in.)-32.5 inches
Width (mm)-826 mm
Height (in.)-50.8 inches
Length (in.)-86.0 inches
Height (mm)-1290 mm
Ground Clearance (mm)375 mm361 mm
Ground Clearance (in.)14.8 inches14.2 inches
Seat Height (mm)960 mm975 mm
Wheelbase (in.)58.5 inches58.3 inches
Wheelbase (mm)1,485 mm1481 mm
Seat Height (in.)37.8 inches38.4 inches
Seat Height960 mm / 37.8 in.975 mm / 38.4 in.
Wheelbase1,485 mm / 58.5 in.1481 mm / 58.3 in.
Height-1290 mm / 50.8 in.
Length-2184 mm / 86.0 in.
Width-826 mm / 32.5 in.
Weights & Capacities
Fuel Capacity (l)7.00 litres8.00 litres
Wet Weight (kg)-103.0 kg
Oil Capacity (Quarts)-0.85 US quarts
Oil Capacity (l)-0.80 litres
Wet Weight (lbs.)-227.0 pounds
Dry Weight (kg)87.2-
Dry Weight (lbs.)192.2 pounds-
Fuel Capacity (gal.)1.85 gallons2.11 US gallons
Dry Weight87.2 kg / 192.2 lbs-
Fuel Capacity7.00 litres / 1.85 gallons8.00 litres / 2.11 US gallons
Wet Weight-103.0 kg / 227.0 lbs
Engine
Engine TypeSingle cylinder, two-strokeSingle cylinder, two-stroke
Bore x Stroke (in,)2.1 x 2.1 inches2.6 x 2.8 inches
Bore x Stroke (mm)54.0 x 54.5 mm66.4 x 72.0 mm
Displacement (cc)124.80 cc249.0 cc
Displacement (ci)7.62 cubic inches15.19 cubic inches
Engine DetailReed intake.Reed-valve inducted
Fuel SystemCarburettor. Mikuni TMXCarburettor. Hitachi Astemo® Keihin PWK38S
Compression Ratio-10.6:1
Engine Lubrication-Premix
IgnitionKokusan EMSCDI
StarterKickElectric
Drivetrain
ClutchMulti-plate clutch, Brembo hydraulics-
Final DriveChainChain   (final drive)
Gearbox6-speed5-speed
Primary Drive13:50. Primary drive: 23:73.Constant-mesh
Chassis
Trail (mm)-122 mm
Wheel Travel - Front (in.)11.8 inches11.8 inches
Wheel Travel - Front (mm)300 mm300 mm
Wheel Travel - Rear (mm)300 mm315 mm
Trail (in.)-4.8 inches
Wheel Travel - Rear (in.)11.8 inches12.4 inches
Frame TypeChrome-molybdenum steel central-tube frameSemi-double cradle, aluminium
Suspension - FrontWP-USD, AER 48, ? 48 mmKYB® Speed-Sensitive System inverted fork; fully adjustable
Suspension - RearWP shock absorber with linkageKYB® single shock; fully adjustable
Rake26.5°27.7°
Trail-122 mm / 4.8 in.
Wheel Travel - Front300 mm / 11.8 in.300 mm / 11.8 in.
Wheel Travel - Rear300 mm / 11.8 in.315 mm / 12.4 in.
Wheels & Brakes
Brakes - Front Diameter (in.)10.2 inches-
Brakes - Front Diameter (mm)260 mm-
Brakes - Rear Diameter (in.)8.7 inches-
Brakes - Rear Diameter (mm)220 mm-
Brakes - FrontSingle disc. Brake calipers on floating bearingsSingle disc
Brakes - RearSingle disc. Brake calipers on floating bearingsSingle disc
RimsCNC machined hubs. Excel rims. Wire spoked.Dunlop® Geomax MX33 tyres
Tyres - Front-80/100-21