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Ever wondered what that ATV in front of you is? Chances are it’s a YFZ450. With the highest power-to-weight ratio of any production ATV, this multi-championship-winning machine has been the atv elite’s choice for the last five years. The lightweight alloy single-cylinder four-stroke engine has a five-valve cylinder head fed by a Keihin 39mm carburettor – the biggest and most sporting carb in Yamaha’s ATV range – that powers it past the opposition in a surge of terrain-swallowing energy.
YFZ450’s superlight, high-tensile chassis with remote-reservoir race-tuned front suspension turns every ounce of power into forward motion, with the race clutch taking everything you can throw at it. This year, there’s a new colour scheme to look out for. It may be a bit blurred as it goes past, though.
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* Four-stroke technology
* 449 cc liquid-cooled DOHC engine
* 5 titanium valves
Engine type: 1 cylinder, liquid-cooled, 4-stroke, DOHC, 5-valve
Displacement: 449 cc
Bore and stroke: 95 x 63.4 mm
Compression ratio: 11.4 : 1
Lubrication: Dry sump
Carburettor: Keihin 39 FCR H
Ignition: DC-CDI
Starter system: Electric
Fuel tank capacity: 10 litres
Final Transmission: Chain
Gearbox: 5 Speed
Overall length: 1,840 mm
Overall width: 1,170 mm
Overall height: 1,090 mm
Seat height: 810 mm
Wheelbase: 1,280 mm
Dry weight: 159 kg
Brake front: Twin piston, hydraulic double disc
Brake rear: Twin piston, hydraulic disc
Tyres front: AT 21 x 7-10 radial
Tyres rear: AT 20 x 10-9 radial
Contact ATV World for more information |
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