2007 Yamaha WR450F
2007 Yamaha WR450F
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Technical Specification
Engine Type - Liquid-cooled, 4-stroke, DOHC, 5-valves, forward-inclined single cylinder
Displacement - 449 cc
Bore and stroke - 95 x 63.4 mm
Compression ratio - 12.3 : 1
Max. power - NA
Max. torque - NA
Lubrication - Dry sump
Carburettor - Keihin FCR-MX39/1
Clutch type - Wet, multiple-disc
Ignition - CDI
Starter system - Electric and kick
Transmission - Constant mesh, 5-speed
Final transmission - Chain
Primary reduction ratio - 61/23 (2.652)
Secundary reduction ratio - 50/13 (3.846)
Gear ratio - Gear ratio 1; 29/12 (2.417), Gear ratio 2; 26/15 (1.733), Gear ratio 3; 21/16 (1.313), Gear ratio 4; 21/20 (1.050), Gear ratio 5; 21/25 (0.840)
Frame - Alu semi-double cradle
Front suspension - Telescopic forks
Front wheel travel - 300 mm
Rear suspension - Swingarm (link suspension)
Rear wheel travel - 305 mm
Caster angle - 27.0°
Trail - 116 mm
Front brake - Single disc, Ø 250 mm
Rear brake - Single disc, Ø 245 mm
Front tyre - 90/90-21 54R
Rear tyre - 130/90-18 69R
Overall length - 2,190 mm
Overall width - 825 mm
Overall height - 1,300 mm
Seat height -990 mm
Wheelbase - 1,485 mm
Min. ground clearance - 370 mm
Dry weight - 112.5 kg
Fuel tank capacity - 8.0 litres
Oil tank capacity - 1.2 litre
Specification are subject to change without notice, in accordance with national regulation and legislations.
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