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YFZ450RX

Introduced in 2009 the YFZ 450R and YFZ 450X were purpose built Race Quads designed to dominate the track and trails. Both the R and X versions were powered by the 449cc Fuel Injected, 5 valve, liquid-cooled, 4-stroke. The new engine had an amazing power-band, electric start, and redesigned 5-speed transmission. Both versions also shared a similar hybrid Aluminum frame and race ready suspension making the new YFZ 450r and YFZ 450X two of the most competitive ATV's available at that time.To add another level of race readiness The YFZ450R and YFZ450X included adjustable 4 position Pro-Taper handlebars. Yamaha also installed quick disconnects on the body panels so you can easily remove them for service or a thorough cleaning after a day at the track. 

YFZ450RX

YFZ450RX

YFZ450RX

YFZ450RX

The YFZ 450R was designed with MX track duty in mind with longer travel suspension and a wider, lower stance. The R had wider dual Steel a-arms up front and a cast aluminum rear swing arm. The KYB piggyback shock  front shocks were 44mm and the rears were 46mm and provided 9.8 inches of travel up front and 11 inches out back. The shocks had a Kashima coating that helps provide smooth and consistent operation in all conditions. The new shocks had HI/LO speed compression damping, rebound and preload adjustments with 80% larger reservoirs to support the longer suspension travel. 

YFZ450RX

YFZ450RX

Yamaha also introduced the YFZ 450X which was the Cross Country version or Woods version of the new YFZ450 designed for tight trail use. The YFZ 450X was the brain child of the Yamaha development team working closely with GNCC Champion Bill Ballance. The new YFZ 450X front end was narrowed 48.8 inches to 46.25 inches giving the offroad riders the clearance needed to rip through narrow gaps out on the trail. To get the desired clearance outback Yamaha choose to change the offset on the wheels instead of redesigning the rear axle so both the X and the R can use the standard rear axle.

YFZ450RX

YFZ450RX

The new 2014 YFZ450R is ready for the track right out of the box. The compression has been raised from 11.6:1 to 11.8:1 thanks to the longer connecting rod and new piston design. New intake and exhaust cams increase the valve lift and the remapped ECU also help increase the power output. To help transfer the power to the ground more effectively Yamaha equipped the new YFZ450R with an assist and slipper clutch. By using the engagement ramps instead of a standard style clutch engagement softer springs can be used providing positive engagement while giving the rider a 25% lighter level pull. The slipper clutch also prevents the rear wheels skipping and sliding while the rider decelerates providing better control and increased corner speeds. The new YFZ450R also received an additional 3mm on the front shocks and specially designed Maxxis tires that provide a lighter more precise steering. 

YFZ450RX

YFZ450RX

YFZ450RX

YFZ450RX

The Yamaha YFZ450R is a serious contender right out of the box. If you want an ATV with a little more flash Yamaha has Special Edition versions with graphic and paint schemes that help you stand out in the crowd. If that's not enough Yamaha also offers a full line of GYTR Yamaha OEM accessories to customize the YFZ450R. If you're ready to rip checkout the Yamaha YFZ450R it's hard to beat, Literally!

Yamaha YFZ 450R/X Specs

Tires, Battery, Spark Plug, Oil Filter, and Air Filter

Yamaha YFZ 450R Specs

2009-2013 YFZ 450R (SE)

Front Tires 21x7x10

Rear Tires 20x10x9

Battery YTZ7S

Spark Plug CR8-E0000-00-00 (CR8E)

Oil Filter 1 18P-13411-00-00

Oil Filter 2 18P-13421-00-00

Air Filter 5TG-14451-00-00

Yamaha YFZ 450X Specs

2010-2011 YFZ 450X

Front Tires 21x7x10

Rear Tires 20x10x9

Battery YTZ7S

Spark Plug CR8-E0000-00-00 (CR8E)

Oil Filter 1 18P-13411-00-00

Oil Filter 2 18P-13421-00-00

Air Filter 5TG-14451-00-00

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