Homologated for racing and available in limited numbers, the CRF450RWE Works Edition includes all the improvements of this year’s CRF450R plus a special hand-ported cylinder head, black DID DirtStar LT-X rims, an exclusive Yoshimura exhaust system including a titanium header, titanium nitride-coated lower fork legs and shock shaft, an RK gold chain, special ECU settings, black triple clamps, revalved suspension, a factory-spec gripper seat, and an HRC decal package.
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.
Lightweight titanium intake valves cut down on reciprocating mass and permit the use of smaller valve springs, reducing overall engine height.
The CRF450R features a downdraft intake tract and FI body to help increase both power and fuel-metering precision. It’s part of the reason the CRF450R offers such explosive power and massive torque, especially out of the starting gate and in the critical first 100 feet of the race to the first turn.
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 “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.
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.
The CRF450R features a refined squish area that helps boost compression to an impressive 13.5:1. That means improved combustion efficiency for more power.
With all the time you’ll be spending in victory circle, you need to look your best. The 2020 CRF450R has you covered. Our redesigned “in mold” graphics look great, and stay looking good. Plus, the CRF450RWE gets special red number plates this year.
A factory skid plate is light and offers the engine and lower-frame protection that a racer demands.