Yamaha YZ250F 2017 vs. KTM 450 EXC-F 2025

Yamaha YZ250F 2017

KTM 450 EXC-F 2025

Overview - Yamaha YZ250F 2017 vs KTM 450 EXC-F 2025

Yamaha YZ250F 2017

KTM 450 EXC-F 2025

CLICK BAG. The one with the “click”.

The Wunderlich tank bag with smart handling.

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50 Years Strong: One Brand – One Promise!

Perfect fit, premium quality – with Hepco&Becker accessories, your bike is ready for any adventure. Quality made in Germany.

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Technical Specifications Yamaha YZ250F 2017 compared to KTM 450 EXC-F 2025

Yamaha YZ250F 2017

KTM 450 EXC-F 2025

Yamaha YZ250F 2017

KTM 450 EXC-F 2025

Engine and Drive Train

Bore	Bore	77 mm	Bore	95 mm
Stroke	Stroke	53.6 mm	Stroke	63.4 mm
Compression Ratio	Compression Ratio	13.5	Compression Ratio	12.75
Fuel system	Fuel system	Injection	Fuel system	Injection
Starter	Starter	Kick	Starter	Electric
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath
Transmission	Transmission	Chain	Transmission	Chain
Number of gears	Number of gears	5	Number of gears	6
Cylinders	Cylinders	1	Cylinders	1
Strokes	Strokes	4-Stroke	Strokes	4-Stroke
Displacement	Displacement	250 ccm	Displacement	449.9 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Upside-Down telescopic fork
Travel	Travel	310 mm	Travel	300 mm

Suspension Rear

Suspension	Suspension	Swing arm	Suspension	Swing arm
Shock absorber	Shock absorber	Monoshock	Shock absorber	Monoshock
Travel	Travel	315 mm	Travel	310 mm

Chassis

Frame	Frame	Aluminium	Frame	Chromium-molybdenum
Frame type	Frame type	Twin Tube	Frame type	Double cradle, Central tube

Brakes Front

Type	Type	Single disk	Type	Single disk
Diameter	Diameter	270 mm	Diameter	260 mm

Brakes Rear

Type	Type	Disc	Type	Disc
Diameter	Diameter	245 mm	Diameter	220 mm

Dimensions and Weights

Front tyre width	Front tyre width	80 mm	Front tyre width	90 mm
Front tyre height	Front tyre height	100 %	Front tyre height	90 %
Front tyre diameter	Front tyre diameter	21 inch	Front tyre diameter	21 inch
Rear tyre width	Rear tyre width	100 mm	Rear tyre width	140 mm
Rear tyre height	Rear tyre height	90 %	Rear tyre height	80 %
Rear tyre diameter	Rear tyre diameter	19 inch	Rear tyre diameter	18 inch
Wheelbase	Wheelbase	1,475 mm	Wheelbase	1,489 mm
Seat Height	Seat Height	965 mm	Seat Height	963 mm
Fuel Tank Capacity	Fuel Tank Capacity	7.5 l	Fuel Tank Capacity	8.5 l

Pros and Cons in comparison

Yamaha YZ250F 2017

Unfortunately, our editors did not test this model.

KTM 450 EXC-F 2025

The KTM 450 EXC 2025 impresses as a reliable enduro bike all-rounder that scores particularly well on longer rides with its smooth and powerful engine characteristics.

wide torque curve forgives many riding errors

always clean reponsiveness

the engine easily shakes the power out of its sleeve and is never really challenged. Hard-working riders who put in long hours will probably be happier with it than with the more radical 250cc or 350cc models

smooth, quiet power delivery

comparatively low fuel consumption

practical maintenance intervals

good traction

pleasantly controllable engine brake

The engine heats up quickly on very slow sections

slightly more demanding on downhill sections than the small displacements or 2-Strokes

sound is a little too intrusive in sensitive regions

tedious throttling requires new mapping in the ECU