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.
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; theres 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.
Advanced Cylinder Head
The 449cc engine uses titanium five-valve cylinder head technology designed to deliver abundant power in the mid-range to top end, with more hit feeling right off idle. The higher compression ratio further improves overall engine performance.
Race Ergonomics
Large diameter, tapered handlebar reduces vibration and are mounted on 4-way clamps for exceptional adjustability. The two sets of holes in the handlebar crown and the eccentric clamps allow a rider to choose the standard setting, 10mm or 20mm forward, or 10mm back. Foot pegs are a generous 66mm wide, something riders will appreciate every time they want to get up on the pegs.
Race-Ready Engine
The YFZ450R is the most technologically advanced sport ATV on the market today. It combines a high-tech, quick-revving, titanium-valved, 449cc fuel-injected engine with a lightweight, professional-caliber cast aluminum/steel chassis. The power and chassis combination makes for a championship-winning machine time and time again.
Wide Track and Maxxis Tyres
Wheels are set motocross-spec wide, near the maximum allowable 1270mm, for great cornering speed. Maxxis® tyres help provide excellent handling and control. At 508mm in the rear and 533mm in the front, they provide better ground clearance than the competition.
Technical Specifications
Engine Type
Liquid-cooled, 4-stroke, DOHC, 5-valve, single cylinder
Displacement (cc)
449
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
Final Transmission
Chain
Transmission
Constant mesh 5-speed
Length (mm)
1795
Width (mm)
1240
Height (mm)
1065
Seat Height (mm)
810
Wheelbase (mm)
1270
Ground Clearance (mm)
115
Wet Weight (kg)
184
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
Gallery & Videos
showroom_folder yfz450r se
showroom_brand yamaha
showroom_brand_wufoo yamaha
showroom_gallery_count
showroom_technology_data
showroom_engine_data Engine Type|Liquid-cooled, 4-stroke, DOHC, 5-valve, single cylinder;Displacement (cc)|449;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;Final Transmission|Chain;Transmission|Constant mesh 5-speed
showroom_chassis_data 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
showroom_dimensions_data Length (mm)|1795;Width (mm)|1240;Height (mm)|1065;Seat Height (mm)|810;Wheelbase (mm)|1270;Ground Clearance (mm)|115;Wet Weight (kg)|184
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content_description1
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.
*Images show optional accessories fitted.
content_description2
Engine Type|Liquid-cooled, 4-stroke, DOHC, 5-valve, single cylinder;Displacement (cc)|449;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;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
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