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The 2027 Honda CRF450R in Red is a purpose-built motocross machine designed around a compact 450cc liquid-cooled single-cylinder four-stroke with a Unicam® SOHC valvetrain and PGM-FI fuel injection through a 46mm throttle body. A close-ratio five-speed manual and #520 chain final drive keep gearing tight for track work. For chassis control, it pairs a 49mm inverted Showa® fork with 12.2 inches of travel and a Pro-Link® Showa® rear shock with 12.0 inches of travel, backed by a 260mm front brake disc. Finishing touches like black DID DirtStar rims and bold Honda graphics underline the all-new 2027 look.
At the heart of the CRF450R is a 450cc liquid-cooled single-cylinder four-stroke with a new Unicam® valve layout designed to increase valvetrain rigidity while keeping the package compact. Fueling is handled by a PGM-FI system with a 46mm throttle body, and Honda also specifies double-spray injector settings for improved atomization and stronger midrange and overrev character.
The CRF450R chassis is built around long-travel suspension front and rear: a 49mm inverted Showa® fork with 12.2 inches of travel up front, and a Pro-Link® Showa® single shock with 12.0 inches of travel out back. Honda also notes a lighter, more responsive shock setup aimed at improving low-speed compression damping feel and keeping the suspension more consistent through the stroke.
Track conditions change quickly, and the CRF450R is set up for quick adjustments without leaving the cockpit. An engine mode selection button on the left handlebar lets you switch between Standard, Smooth, and Aggressive modes to tailor power delivery. There’s also Honda Selectable Torque Control (HSTC), activated from a left-side handlebar-mounted green button, with three settings to suit traction conditions.
Honda’s 2027 CRF450R uses a 450cc liquid-cooled single-cylinder four-stroke with a 13.8:1 compression ratio, Unicam® SOHC valvetrain, and four valves per cylinder. Bore and stroke are listed at 97.0mm x 60.8mm. Induction is via PGM-FI with a 46mm throttle body, and Honda’s double-spray injector settings deliver two fuel sprays per intake cycle for improved atomization and added strength through the midrange and on overrev.
Honda also details larger valves to support intake efficiency: titanium intake valves increase from 38mm to 40mm, while the exhaust valves move from 31mm to 32mm, alongside head and port changes intended to optimize airflow. A single-pipe exhaust routes the header close to the center of the bike, with lightweight construction intended to help weight distribution and deliver more controllable low- and mid-rpm power than the previous generation.
For 2027, Honda calls out an all-new frame with slightly more steering rake and a longer wheelbase, with major components fine-tuned for rigidity and weight loss. Key dimensions include 27.3° of rake, 4.6 inches of trail, and a 58.7-inch wheelbase. Seat height is 37.5 inches, ground clearance is 13.1 inches, and fuel capacity is 1.9 gallons. Curb weight is listed at 238 pounds (including required fluids and a full tank of fuel); dry weight is 225 pounds (curb weight without fuel).
Honda also moved the footpegs back 5mm to make it easier to shift weight over the rear wheel for improved hookup. Braking is handled by a single 260mm front disc with a twin-piston caliper and a single 240mm rear disc. Dunlop tires are specified in the sizing of 80/100-21 front and 120/90-19 rear, paired with black DID DirtStar rims for a lightweight, strong wheel package that’s also easy to clean.
Power is delivered through a close-ratio five-speed manual transmission and #520 chain final drive with 13T/51T gearing. Honda also lists an all-new clutch assembly and a hydraulic clutch, supporting consistent lever feel during hard motos.
For adapting to track and traction changes, the left-handlebar engine mode button provides three selectable maps (Standard, Smooth, and Aggressive). Honda Selectable Torque Control (HSTC) is also included, offering three settings to manage rear-wheel traction. Honda further lists HRC launch control as part of the model’s equipment suite.
In Red, the 2027 CRF450R comes with bold Honda graphics inspired by Honda’s factory MXGP bikes. Honda notes the blue rear fender and side number plates as a nod to the brand’s historic motocross machines, making the 2027 model-year styling easy to recognize. Practical details like the black rim finish complement the look while keeping cleanup straightforward after track days.
The titanium intake valves have increased in diameter from 38mm to 40mm, and the exhaust valves from 31mm to 32mm. The valve angle in the head also changed (included angle remains the same), to optimize intake efficiency. The intake port is shorter too, all contributing to the boost in power.
The system sprays fuel twice per intake cycle for better atomization and increased power in the midrange and on overrev. You'll feel it during your first race.
The single-pipe header routes close to the center of the bike, and its light overall construction helps improve weight distribution. It also produces more controllable power in the low- and mid-rpm range than the previous generation.
The 2027 frame may look the same, but it’s really all new, with slightly more steering rake and a longer wheelbase. The major frame components have been fine-tuned for rigidity and weight loss. Meanwhile, the footpegs moved back 5mm, making it easier to shift your weight over the rear wheel to help it hook up.
A 49mm Showa® fork features Kashima coating to the internal sliding components, enhancing stroke feel and improving smoothness. A DBS (Dynamic Blow System) main-piston valve increases compression damping in the extremely low-to-low speed range, improving stroke consistency.
A lighter shock body is surrounded by a new red spring. The shock itself is more responsive, enhancing damping feel in the low-speed compression range and providing a more consistent feel throughout the suspension stroke.
Easily control your bike's traction with the left-side handlebar-mounted green button, activating our Honda Selectable Torque Control (HSTC) system. It offers three customizable settings to optimize your ride based on conditions or preference.
There’s no way you can miss the new Honda graphics on our 2027 CRF450R. Straight off our factory MXGP bikes, everyone will immediately know you’re on a 2027 model. The blue rear fender and side number plates are a nice nod to Honda’s dominant historic motocross bikes, too.
The DID DirtStar rims are lightweight and strong, while the black color looks good and is easy to clean.
Customize your engine's power delivery on the fly with the convenient left-side handlebar-mounted blue button, allowing you to easily switch between Standard, Smooth, and Aggressive modes to suit varying track conditions or rider preference.
A new engine this year features a new Unicam valve layout that aligns intake and exhaust rockers on a common axis to increase valvetrain rigidity while also resulting in a more compact package.
Download official PDF resources for the 2027 Honda CRF450R, including the product brochure and owner’s manual when available.
See TERMS for details. Plus government fees and taxes, any finance charges, dealer document processing charges, electronic filing fees, emission testing charges, and freight. All sale prices include applicable factory incentives. Availability may vary. Some items may not be in immediate dealer stock and may require ordering. Estimated order time ranges from 1 to 90 days. Please see terms for full details. Please call to confirm availability.
