Featuring a “reversed” rear slanted engine design for mass centralization, minimal bodywork and a proven KYB “SSS” suspension system, the YZ450F offers class leading power in a 250 sized chassis. The YZ450F balances the 3 essential elements of an ultimate motocrosser: easy cornering, lightweight & compactness and a deep, useable power band.
The “reversed” liquid-cooled, 450cc, DOHC, 4-valve (titanium), single has been tuned for excellent “ride-ability and controllability” and delivers a broad, deep power band. Click here for YZ Power Tuner suggested settings.
The compact “Bilateral Beam” aluminum frame centralizes mass for exceptional handling while the fully adjustable “SSS” KYB suspension soaks up the rough staff with ease. And our large 270 mm front disc brake slows it all down in a hurry.
|4-stroke, liquid-cooled, DOHC, 4-valve (titanium), single|
|Bore and Stroke|
|97 x 60.8 mm|
|Keihin 44mm throttle body F.I.|
|Ignition / Starting|
|TCI / Kick|
primary ratio 2.609 (60/23)
secondary ratio 3.692 (48/13)
1st gear 1.929 (27/14)
2nd gear 1.533 (23/15)
3rd gear 1.300 (26/20)
4th gear 1.091 (24/22)
5th gear 0.952 (20/21)
|Adj. 48mm, inverted fork / 310mm (12.2") wheel travel|
|Fully adj. Monocross / 315mm (12.4") wheel travel|
|270 mm, floating disc / twin piston caliper|
|245 mm, disc / single piston caliper|
|7.5 litres (1.7 Imp. gal.)|
|112kg (247 lb)|
Yamaha Racing Blue