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2021 Yamaha YFZ450R

YFZ450R’s sharp-handling chassis and ultra-responsive engine have made it today's number one racing ATV. A race-bred assist and slipper clutch gives more precise control over corner entry speed for quicker lap times - while the uprated engine delivers superfast throttle response and hard-hitting high rpm power for holeshot-winning performance.

Sharp-designed bodywork gives the rider space to shift bodyweight during cornering or hard acceleration. And the light shocks make for super sharp handling.

PRICE: P.O.A

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Advanced Frame

The YFZ450R is motocross ready. The weldless frame is designed from lightweight aluminium, with a tension-steel bottom frame that lets the engine sit lower for excellent mass centralisation. Suspension components and settings reduce weight while providing light, sharp handling and rider comfort.

Advanced Suspension

The front frame is as narrow as possible at the A-arm mounting points which reduces changes in camber as the suspension travels through its full range of motion. The front KYB® shocks have Kashima™ coating for smooth operation. 249mm of wheel travel means this racer is up to even the most challenging tracks. The rear swingarm has 279mm of travel for the toughest tracks.

Aggressive Bodywork

Bodywork is designed for great ergonomics and rider comfort, with more room to hang off in the corners, and the seat shape is padded in just the right places to improve lap times. Body panels come off easily without tools for service; there’s no need to remove the battery or other components to take the fenders off.

Assist and Slipper Clutch

An assist-and-slipper clutch reduces clutch lever effort for less fatigue while at the same time increasing clutch plate pressure for positive engagement. This clutch system also reduces engine braking effect, which allows faster cornering, particularly when downshifting.

TECHNICAL SPECS

Engine Type Liquid-cooled, 4-stroke, DOHC, 5-valve, single cylinder
Displacement (cc) 449.0
Bore x Stroke (mm) 95.0 x 63.4
Compression Ratio 11.8 : 1
Lubrication System Dry sump
Fuel Management Fuel Injection
Ignition TCI
Starter System Electric
Fuel Tank Capacity (L) 10.0
Final Transmission Chain
Transmission Constant mesh 5-speed
Frame Type Aluminium and steel tube
Suspension Front Independent double wishbone, 250mm travel
Suspension Rear Swingarm (link suspension), 280mm travel
Brakes Front Hydraulic dual discs
Brakes Rear Hydraulic wave type disc
Tyres Front AT21 X 7R10
Tyres Rear AT20 X 10R9
Length (mm) 1795
Width (mm) 1240
Height (mm) 1065
Seat Height (mm) 810
Wheelbase (mm) 1270
Ground Clearance (mm) 115
Wet Weight (kg) 184