Electric Start

Lighter Overall Weight

We shaved an additional 795 g (1.75 lb) from this year’s CRF450R—a surprise considering how light this bike already is. Where did it come from? Mostly from eliminating the kickstart option, but weight is weight, and on a racebike less of it is almost always better.

260 mm Front Brake

The CRF450R’s large front-brake disc measures a whopping 260 mm. You get great brake feel and a pattern that cuts down on weight. Front and rear brake-disc guards are part of the package too.

Titanium Fuel Tank

Grams and performance count, and the CRF450R uses a titanium fuel tank. Light and strong, it’s also thinner than our previous plastic unit, while maintaining the same capacity, freeing up more space and helping to centralize fuel mass.

449 cc Unicam Engine

Honda’s Unicam cylinder heads combine 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.

New Double-Spray Injector Settings

"The CRF450R’s fuel-injection system sprays twice per intake cycle. That helps increase fuel atomization without adding the weight or complexity of a second injector. The better fuel atomization means more power in the midrange and on overrev—you’ll feel it the first time you race. "

Developed using Dunlop’s latest “block-on-block” design technology, the CRF450R’s MX3S tires give excellent feedback and are a perfect complement to the CRF450R’s frame and suspension.

Cylinder Head Layout

The CRF450R uses our latest finger-follower rocker design. The Unicam cylinder head remains one of the most efficient in the MX world, giving you the design and performance of a double-overhead-cam layout but the compactness of a single-overhead-cam design.

13.5:1 Compression Ratio

The cylinder head of CRF450R features a refined squish area that helps boost compression to an impressive 13.5:1. That means improved combustion efficiency for more power.

“In Mold” Graphics

With the all the time you’ll be spending in victory circle, you need to look your best. The 2019 CRF450R has you covered. Our “in mold” graphics look great, and stay looking good longer.

New Programmable ECU

Want to fine-tune your CRF450R’s power delivery to a specific riding style or track? It’s easier than ever with the 2019 CRF450R’s programmable ECU.

Skid Plate

A factory skid plate is light and offers the engine and lower-frame protection that a racer demands.