2009 KTM 450SX-F

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2009 KTM 450SX-F
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2009 KTM 450SX-F

2009 KTM 450SX-F

2009 KTM 450SX-F

– 2009 KTM 450SX-F

2009 KTM 450SX-F

Not a bike but a racing machine which is the main contender on all tracks. As well as the revolutionary engine, this bike also has an extremely light chassis and trend-setting running gear. For 2009, the 450 SX-F (like the 250 SX-F) has been trimmed at the factory specifically for MX1 series wins: with huge numbers of great PowerParts!

2009 KTM 450SX-F – Specifications

Engine type Single cylinder, 4-stroke
Displacement 449.3 cc
Bore x stroke 97 x 60,8 mm (3.82 x 2.39″)
Compression ratio 12.5:1
Starter E-Starter/12 V 4 Ah
Transmission 4 gears
Carburetor Keihin FCR-MX 41
Control 4 V / DOHC with finger followers
Lubrication Pressure lubrication
Engine lubrication Motorex, SAE 10W50
Primary drive 29:74
Final drive 14 : 52
Cooling Liquid cooled
Clutch Wet multi-disc clutch, operated hydraulically
Ignition Kokusan


Frame Central double-cradle-type 25CrMo4
Subframe Aluminium
Handlebar Renthal, Aluminium Ø 28/22 mm
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″)
Brakes, front/rear Disc brakes 260 / 220 mm (10.24 / 8.66″)
Rims, front/rear 1.6 x 21″; 2.15 x 19″ Excel
Tires, front/rear 80/100-21″; 110/90-19″
Chain 5/8 x 1/4″
Main silencer Aluminium
Steering head angle 63,5°
Wheel base 1475 ± 10 mm (58.07 ± 0.38″)
Ground clearance (unloaded) 380 mm (14.96″)
Seat height 985 mm (38.78″)
Tank capacity approx. 8 liters (2.11 gal)
Weight (no fuel) approx. 104.6 kg (230.6 lbs)