2004 KTM 450 SMR
So uncompromising like the big bikes, not
only in appearance. For junior world champions
ages 9 and up. With adequate competition chassis,
disc brakes front and rear, liquid cooled
racing engine with 6-gear shift mechanism
and hydraulic clutch.
The 65 SX is equipped with a new front brake
system, similar to the 85 SX (11 mm hand-brake
cylinder piston, four-piston callipers 2x20
and 2x22 mm, 200 mm brake disc). The foot
brake features integrated reservoir and dual-piston
rear brake calliper (11 mm foot brake cylinder
piston, dual-piston calliper 2x22 mm, 160
mm brake disc). New carburettor with chromium-plated
slide and air control screw. Water pump improved
for enhanced water pump shaft durability.
Engine - single cylinder, 4-stroke
Displacement (cc) - 449.39
Bore x stroke (mm) - 95 x 63.4
Compression ratio - 12:1
Starter - kick-starter
Transmission - 6 gears
Carburetor - Keihin MX FCR 41
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-3A
Frame - chromium molybdenum
Subframe - aluminium
Handlebar - tapered Renthal R 28 mm
Front suspension - WP-USD 48/26 MA/PA
Rear suspension - WP-PDS-DA shock absorber
Suspension travel, front/rear - 285 / 300
mm
Front / Rear brakes - disc brakes 310 /
220 mm
Front / rear rims - 3.50 x 17"; 5.00 x
17"
Front / rear tires - 120/75-17"; 165/55-17"
Transmission - 14:45
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) - 310 mm
Seat height - 855 mm
Fuel capacity - approx. 7 litres
Weight (ready to race, no fuel) - approx.
106.9 kgs
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