Ready to race: KTM 250 SX-F Ken Roczen
ENGINE
DOHC four-stroke engine equipped with an electric starter!
It excels with an extremely wide usable rev range and powerful performance from the bottom end up to beyond the nominal engine speed.
VALVE TRAIN
Two overhead camshafts, four titanium extremely lightweight valves, carbon-coated cam levers. Ultra-light pistons and extremely short-stroke engine facilitate speeds of up to 13,400 1/min.
ENGINE MANAGEMENT (EMS)
The Keihin-Engine-Management-System with electronic fuel injection ensures spontaneous responsiveness and maximum performance. Various engine characteristics can be activated due to a Map-Select-Switch.
Extrem breit nutzbares Drehzahlband, Performance schon aus dem Drehzahlkeller bis über 13.000 1/min.
Durch zwei oben liegenden Nockenwellen werden vier Titan-Ventile über kohlenstoffbeschichtete Schlepphebel betätigt. Ultra-leichter Kolben und extreme Kurzhubigkeit ermöglichen Drehzahlen bis zu 13.400 1/min.
Keihin-Engine-Management System mit elektronischer Kraftstoffeinspritzung für spontanes Ansprechverhalten und maximale Performance des Triebwerks. Mit einem Map-Select-Switch lassen sich unterschiedliche Motorcharakteristiken aktivieren.
KTM 250 SX-F
Engine
Type
Single cylinder, 4-stroke
Displacement
248.6 cc
Bore/stroke
76/54.8 mm
Compression ratio
13.2:1
Electric starter
12V 3Ah
Transmission
6 gears
Carburetor
Keihin EFI
Lubrication
Pressure lubrication with 2 oil pumps
Gear ratios
13:32 15:30 17:28 19:26 21:25 22:24
Primary ratio
22:68
Final drive
13:48
Cooling
Liquid cooling
Clutch
Wet multi-disc clutch
Chassis
Frame
Central double-cradle-type 25CrMo4
Subframe
Aluminium
Handlebar
Renthal, Aluminium Ø 28/22 mm
Front suspension
WP-USD, Closed Cartridge, Ø 48 mm
Rear suspension
WP-Monoshock with linkage
Suspension travel
front/rear 300/330 mm
Disc-brakes
Front/rear 260/220 mm
Steering
head angle
63.5°
Wheel base
1,495 ± 10 mm
Ground clearance
375 mm
Seat height
992 mm
Tank capacity
approx. 7.5 l
Weight
Top secret
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