The KX250F fuel injection system features
dual injectors: an injector downstream of the
throttle valve (where injectors are located on
standard FI systems), and a second,
upstream injector located close to the airbox
Adjusting engine settings to suit conditions
has never been easier than with the KX's DFI
couplers. Plug-and-play style system is quick,
easy and stress-free.
KX motocrossers have long drawn on works
technology to offer riders the best possible
performance right out of the box. Launch
Control Mode is just one of the factory features
that give riders an edge when lining up at the
The KX250F was the first mass-production
motocrosser to feature Showa's Separate
Function front Fork (SFF), which separates
damping and shock absorption duties.
Complemented by new adjustable handle and
footpeg positions, the natural riding position
makes it even easier for racers to go fast.
The KX design philosophy – to put mid-level to expert
riders on the top step of the podium – has not changed
since the brand was launched over 40 years ago.
The KX250F is perhaps the most successful racer in the extremely competitive 4-stroke 250cc class.
Bore x Stroke
Rake / Trail
Wheel Travel F/R
Fuel Tank Capacity
Single cylinder 4-stroke
77.0 x 53.6 mm
Fuel injection: 43 mm
(Keihin) with dual
28.7° / 126.4 mm
48 mm upside-down
Function front Fork
315 / 310 mm
270 mm petal disc
240 mm petal disc