Simply stated, the best of the best. The CRF450RWE Works Edition includes all the standard CRF450R features, but also gets a special hand-ported cylinder head; Hinson clutch basket and cover; Twin Air filter, Throttle Jockey graphics and seat cover; upgraded DID DirtStar LT-X rims; an exclusive Yoshimura exhaust system including a titanium midpipe and muffler; Kashima and titanium oxide-coated lower fork legs; revalved suspension; an RK gold chain; special ECU settings; and black triple clamps. Available in extremely limited numbers.
Honda 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.
You can’t see this unless you take the engine apart, but you’ll notice it on the track. Last year our engineers redesigned the auto decompression hardware, and also moved it from the right side of the cam to the left. The result is less stalling at extreme low RPM (think deep into a turn without downshifting) as well as better rideability.
The 2024 CRF450R features a special cylinder head. Its biggest feature: an oval-shaped centralized exhaust port. Together with the single-muffler exhaust, it boosts power from 5000 rpm up, and increases exhaust efficiency. Plus, the CRF450RWE gets some exclusive porting touches and engraving. The cylinder head cover is red too, so it really stands out.
Lightweight titanium intake valves cut down on reciprocating mass and permit the use of smaller valve springs, reducing overall engine height.
By installing the CRF450R’s fuel injector at a 60-degree angle, the injector sprays fuel all the way back to the throttle butterfly. The engine gets a cooler, denser fuel charge for more power and better torque. It’s little details like this that put the CRF450R up front.
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.
These are the tires of choice for serious MX racers right now, so naturally, we fit the best to the 2024 CRF450R. The Dunlops hook up in a wide variety of conditions, and help you put the CRF450R’s improved cornering performance to the ground.
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.
Honda engineering at its best: The CRF450R’s cylinder head features a highly refined combustion-chamber shape and generous squish area, allowing an impressive 13.5:1 compression ratio for superior efficiency and power.
A factory skid plate is light and offers the engine and lower-frame protection that a racer demands.