1 of 6
The CRF450R-S’s twin-spar aluminum frame positions the rear shock’s mounting point lower, opening up the airbox area and contributing to a lower center of gravity for more holeshots. The frame geometry also helps improve traction, feeling and steering precision.
We’re talking about a special ECU program here: push the button to select the mode, hold the throttle open, release the clutch, and the CRF450R-S will do the rest, launching you into the first turn with a big advantage. It turns your bike into a holeshot-seeking machine!
Kickstarting? Maybe if you’re riding in the vintage class, but not here. By ditching the kickstarter entirely, our engineers can make the CRF450R-S lighter. Electric starters and lithium-ion batteries are so light now and so good that putting them on a bike like this is a win/win combination. And winning is what a CRF450R-S is all about.
Honda Unicam cylinder head combines the best of single- and double-overhead-cam designs. The configuration contributes to a compact engine that saves weight over a comparable dual-overhead-camshaft motor and also permits a narrow included valve angle. This flattens the combustion chamber to facilitate ignition flame propagation, allowing a high compression ratio. Since less space is taken up in the cylinder head, the camshaft sits lower in the head for a more compact engine and a lower center of gravity.
450cc liquid-cooled single-cylinder
96mm x 62.1mm
Unicam SOHC; four valves per cylinder
Programmed Fuel Injection (PGM-FI), 46mm downdraft throttle body
American Honda Motor Co. Inc. is not responsible for the content presented by any independent website, including advertising claims, special offers, illustrations, names or endorsements. Thank you for visiting www.powersports.honda.com.CLICK HERE TO PROCEED