2004 KTM 450 EXC Racing Motorcycle
Controllable power output together with racing
oriented peak power characterise the 450 EXC
as the ideal 4-stroke competition enduro in
it's class. Smooth and easy to ride engine
characteristics feature on the new reissued
400 EXC Racing. Featuring all technical updates
of the 2004 racing engines such as clutch,
carburettor and single-tube exhaust which
leads to 2 kg weight reduction.
Engine - single cylinder, 4-stroke
Displacement (cc) - 447.92
Bore x stroke (mm) - 89 x 72
Compression ratio - 11:1
Starter - kick-starter and E-starter /
4 Ah
Transmission - 6 gears
Carburetor - Keihin MX FCR 39
Control - 4 V / OHC with roller rocker
lever
Lubrication - pressure lubrication with
2 Eaton pumps
Engine oil - 1,2 l Motorex Power Synt 4T
10W / 50
Primary drive - 33 : 76
Cooling - liquid cooled
Clutch - wet multi-disc clutch, operated
hydraulically
Ignition - Kokusan digital 4K-3B
Frame - chromium molybdenum
Subframe - aluminium
Handlebar - tapered Magura Ø 28 mm
Front suspension - WP-USD 48 MA
Rear suspension - WP-PDS-shock absorber
Suspension travel, front/rear - 300 / 335
mm
Front / Rear brakes - disc brakes 260 /
220 mm
Front / rear rims - 1.60 x 21"; 2.15 x
18" DID
Front / rear tyres - 90/90-21"; 140/80-18"
Transmission - 15:45
Chain - X-ring chain 5/8 x 1/4"
Main silencer - aluminum
Steering head angle - 63.5°
Wheel caster - 112 mm
Wheelbase - 1481±10 mm
Ground clearance (unloaded) - 385 mm
Seat height - 925 mm
Fuel capacity - approx. 8.5 litres
Weight (ready to race, no fuel) - approx.
117.2 kgs
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