“STAYING AT THE FRONT OF THE PACK
To keep the ’09 KX250F at the front of the pack, it receives a number of major changes, including a new head, cylinder, piston and crankcases, a lighter, slimmer chassis sporting a low-friction coated fork and completely new bodywork designed to facilitate rider control.” – Kawasaki.co.uk
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| All the large parts of the new aluminium perimeter frame were re-examined for ways to trim weight. Revised dimensions and rigidity balance offer increased riding stability. | Tuned to best suit race-experienced riders, the 249 cm3 liquid-cooled, 4-stroke Single’s wide powerband focuses on high-rpm performance and extends way into the over-rev. ’09 engine modifications focus on further improving performance in the high-rpm and over-run ranges as well as ensuring sharper response. Revised lubrication improves both performance and reliability; changes to the transmission improve shift touch and clutch feel. | Larger synthetic skid plate replaces the small aluminium unit. The new skid plate offers greater protection without increasing weight. |
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| New swingarm has revised rigidity, which contributes to improved riding stability, and is approximately 400 g lighter. | New rear shock features a revised layout and revised damping characteristics. Improved damping and bottoming performance result in better ride feel and increased road-following ability. Piston diameter of 50 mm and piston rod diameter of 12.5 mm are unchanged from the previous model. | New wider footpegs offer riders increased grip as well as improved feel at the pegs. |
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| Formed using a double-injection moulding process, the new 2-tone shrouds contribute to a slimmer package. Fuel tank also revised accordingly. | A factory-style Renthal aluminium handlebar is standard equipment. |
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| The New Uni-Trak rear suspension system mounts the suspension arm below the swingarm, allowing a longer rear suspension stroke. The longer stroke in turn allows more precise rear suspension tuning. | Showa twin-chamber fork keeps oil and air in separate chambers for stable damping performance during long motos. Revised damping settings for ’09 contribute to lighter handling and improved ride feel. | A super-hard titanium coating on the outer surface of the inner fork tubes reduces sliding friction and improves action, contributing to the smoother ride. The increased surface hardness of the dark navy blue coating also helps to prevent scratches and damage to the tubes. |
KX250F Specifications
Get technical with your new Kawasaki’s vital statistics.
Engine type Liquid-cooled, 4-stroke Single
Displacement 249 cm³
Bore x stroke 77.0 x 53.6 mm
Compression ratio 13.2:1
Valve/Induction system DOHC, 4 valves
Fuel system Carburettor: Keihin FCR-MX37
Ignition Digital AC-CDI
Starting Primary kick
Lubrication Forced lubrication, semi-dry sump
Transmission 5-speed, return
Final Drive Chain Primary reduction ratio
3.350 (67/20)
Gear ratios: 1st 2.142 (30/14)
Gear ratios: 2nd 1.769 (23/13)
Gear ratios: 3rd 1.444 (26/18)
Gear ratios: 4th 1.200 (24/20)
Gear ratios: 5th 1.045 (23/22)
Final reduction ratio
3.692 (48/13)
Clutch Wet multi-disc, manual
Frame type Perimeter, aluminium
Rake/Trail 27.7°/122.3 mm
Suspension, front 47 mm upside-down twin-chamber telescopic fork Compression damping: 16-way Rebound damping:16-way
Suspension, rear New Uni-Trak Compression damping:13-way (low-speed), 2-turns or more (high-speed)
Rebound damping: 17-way
Spring preload: Fully adjustable
Wheel travel, front 315 mm
Wheel travel, rear 310 mm
Tyre, front 80/100-21 51M
Tyre, rear 100/90-19 57M
Brakes, front Single semi-floating 250 mm petal disc
Caliper: Dual-piston
Brakes, rear Single 240 mm petal disc
Caliper: Single-piston
Steering angle, left / right 42° / 42°
Dimensions (L x W x H) 2170 mm x 820 mm x 1270 mm
Wheelbase 1470 mm
Ground Clearance 340 mm
Seat height 955 mm
Fuel capacity 8.0 litres
Curb Mass 104,3 kg
Automatic Headlights On (AHO) n/a
Complies to EU emission limit
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