2010 Yamaha YFZ450R


The prestigious “ATV of the Year” Award from ATV Sport Magazine. “Best in Class” from ATV/SxS Illustrated. Winner of shootout after shootout. The YFZ450R took ’em all – in its first model year, right out of the starting gate. This is one amazing ATV!

In ATV motocross, great power output doesn’t mean much without superior handling. YFZ450R delivers! The stance of the YFZ450R is motocross ready. The weldless frame is designed from lightweight aluminum, with a tension-steel bottom frame that lets the engine sit lower for excellent mass centralization. Suspension components have more travel, carefully chosen for best performance, and the front shock bodies feature Kashima coating for even smoother operation.

Fatigue can sometimes be a racer’s worst competition. That’s why the YFZ450R’s designers made this ATV so comfortable. It boasts racer-friendly ergonomics with plenty of room to hang off in the corners, and the seat is padded just right to be more comfortable regardless of riding position. Handlebars are 4-position adjustable, too, so every rider can choose the best position, and the throttle has been designed for all day comfort.

Engine
Type 449cc, 4-Stroke Single, Liquid Cooled w/Fan, Titanium 5-Valve DOHC
Bore x Stroke 95mm x 63.4mm
Compression Ratio 11.6:1
Fuel Delivery Yamaha Fuel Injection (YFI) , 42mm
Ignition Digital TCI: Transistor Controlled Ignition
Starting System Electric
Transmission 5-Speed Manual Clutch
Drive Train 2WD; Sealed O-Ring Chain, Eccentric Adjustment
Chassis
Suspension / Front Independent double wishbone, w/Kashima coated piggy back shocks, High/Low speed compression, rebound and threaded preload adjustment, 9.8-in travel
Suspension / Rear Cast aluminum swingarm w/piggyback High/Low speed compression, rebound and threaded preload adjustment, 11.0-in travel
Brakes / Front Dual ventilated hydraulic disc, twin piston
Brakes / Rear Wave-style ventilated hydraulic disc, twin piston
Tires / Front AT21x7-10 Radial
Tires / Rear AT20x10-9 Radial
Dimensions
L x W x H 70.7 x 48.8 x 41.9 in
Seat Height 31.9 in
Wheelbase 50.0 in
Ground Clearance 4.5 in
Fuel Capacity 2.6 gal
Wet Weight 405 lb
Other
Lighting Dual 30W Krypton multireflector Headlights and 3.9/0.5W LED Brake light
Warranty 6 Month (Limited Factory Warranty)