KTM

Off Road - 250 EXC

The World Champion machine for real experts. The 250 EXC can measure up to any 450 cc 4-stroke when in the hands of an experienced rider. Low maintenance and less weight make this bike the first choice for the well-trained fanatic.



Chassis
 
Frame central double-cradle-type 25 CrMo4
Subframe aluminum 7020
Handlebar Magura aluminium Ø 28/22 mm (1.10/0.87")
Front suspension WP-USD Ø 48 mm (1.89")
Rear suspension WP-PDS-shock absorber
Suspension travel front/rear 300 / 335 mm (11.81/13.19")
Front / Rear brakes disc brakes 260 / 220 mm (10.24/8.66")
Front / rear rims 1.60 x 21"; 2.15 x 18"
Front / rear tires 90/90-21"; 140/80-18"
Chain X-ring chain 5/8 x 1/4"
Main silencer aluminum
Steering head angle 63,5°
Wheelbase 1475±10 mm (58.07±0.39")
Ground clearance (unloaded) 385 mm (15.16")
Seat height 925 mm (36.42")
Fuel capacity approx. 8.5 litres (2.25 gal)
Weight (ready to race, no fuel) approx. 102.6 kg (226.2 lbs)
Engine
 
Engine Type single cylinder, 2-stroke
Displacement 249 cc
Bore / stroke 66.4 / 72 mm (2.61 / 2.83")
Compression ratio -
Starter kick-starter
Transmission 5 gears
Carburetor Keihin PWK 36 S AG
Power Valve Control TVC power valve
Lubrication mixture oil lubrication 1:60
Transmission lubrication 0.7 l Motorex Top Speed 15W / 50
Engine oil -
Primary ratio 26 : 72
Final drive 14 : 40 (13 : 50)
Cooling liquid cooled
Clutch wet multi-disc clutch, operated hydraulically
Ignition Kokusan digital 2K-3

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