The 2023 Yamaha YZ450FX Dirt Bike sets a new standard for off-road performance, whether tearing over narrow, tricky tracks or racing across the desert. The 2023 YZ450FX has a powerful engine and can be fine-tuned using the Power Tuner app on your smartphone to suit your riding preferences and environmental circumstances. The YZ450FX is a modified version of the YZ450F motocross bike and the undisputed King of the Woods.
The YZ450FX is based on Yamaha’s premier motocross model, the YZ450F, but it has been upgraded with unique features and adjustments to make it the best bike for Woods racing.
With the same race-developed innovations as the class-defining YZ450F motocrosser, the 2023 Yamaha YZ450FX Dirt Bike engine is small and powerful yet tailored for cross-country performance. Steep valve angles, aggressive cam profiles, high-compression forged pistons with low-friction rings, and high-flow intake, and exhaust systems are just a few of the go-fast technologies that have been cleverly packaged to maximize mass centralization. Yamaha’s top-tier Power Tuner app brings the GYTR Power Tuner’s adaptability and accuracy to your mobile device. Modify the bike’s fueling and ignition timing in real-time and then transfer the settings to it at the track for fine-tuning perfection. The best part is that it doesn’t cost a dime.
2023 Yamaha YZ450FX Dirt Bike – Features and Specs
Key Features
Inspired by its motocross sibling and fine-tuned for the demanding requirements of GNCC and Hare Scrambles races, the 2023 Yamaha YZ450FX Dirt Bike emerges as a purpose-built racer. This specialized bike is the best four-stroke woods racer since it has various features and adjustments tailored to cross-country riding.
The heart of this machine is a powerful four-stroke motor that borrows technology from Yamaha’s winning YZ450F motocross bike. The YZ450FX’s engine has high-tech features developed with cross-country performance in mind. These features, carefully packed to maximize mass centralization, allow for potent and responsive performance and include steep valve angles, aggressive cam profiles, a high-compression forged piston with reduced friction rings, and a high-flow intake and exhaust system.
Yamaha’s revolutionary Power Tuner App puts the versatility and precise tuning capabilities of the GYTR® Power Tuner in the hands of riders wherever they go. For on-the-fly, track-side tuning, tweaks to the bike’s fueling and ignition timing may be instantly and wirelessly transmitted. Yamaha’s dedication to improving the riding experience is reflected in the fact that this helpful resource is provided at no cost to riders.
A handlebar-mounted map switch lets riders choose between several engine maps that may be easily customized with the Power Tuner app, allowing for instantaneous response to changing riding circumstances. With this upgrade, the YZ450FX will always perform at its best, no matter the conditions.
The 2023 Yamaha YZ450FX Dirt Bike’s cutting-edge aluminum bilateral beam frame is a work of art, with flex characteristics that are finely calibrated to balance cornering performance, traction feedback, and bump stability. Designed specifically for the challenging terrain of GNCC® and Hare Scrambles racing, this frame gives riders an unprecedented level of command and assurance.
Yamaha’s famed Speed Sensitive System KYB® forks and linkage-type rear suspension, including a KYB® shock, are crucial to the YZ450FX’s excellent suspension performance, immediately establishing itself as the gold standard in its class.
The high-performance braking system uses aggressive pad compounds and light rotors, and it has a stiff front caliper and a small rear caliper. This layout does a great job of dispersing heat and cutting down on unsprung weight, in addition to guaranteeing fantastic braking power and controllability.
The YZ450FX is equipped with an easy-to-use electric starting system that has a lightweight lithium battery and a small starter motor. It assures a push-button start for effortless restarts under duress, and it adds a level of comfort for riding when time isn’t of the essence. The YZ450FX was designed from the ground up to meet the demands of GNCC and Hare Scrambles competition with unrivalled accuracy and power.
Engine
The 2023 Yamaha YZ450FX Dirt Bike is distinguished by its rearward-slanted cylinder design, which includes a down-draft intake system located in front of the rider and an exhaust situated at the back. This novel setup integrates the cylinder head and frame design for optimum center of gravity placement. A straight intake tract and aggressive cam profiles characterize the engine’s interior. To further improve performance, a high-compression “box bridge” piston design with a DLC-coated piston pin was included. The YZ450FX is equipped to handle the rigors of off-road racing with precision thanks to cross-country rider-specific ECU settings.
Yamaha unveils the innovative Power Tuner App, a flexible device allowing riders access to the GYTR Power Tuner’s tuning capabilities. The free app is available for both iOS® and Android smartphones, and it uses a wireless connection to talk to the bike’s internal CAN-bus system. To optimize engine performance for different types of tracks, owners may adjust maps for air/fuel ratio and ignition timing. The programmer also lets you keep track of essential data like service schedules and system diagnostics, in addition to recording race log data.
The YZ450FX has a map switch conveniently located on the handlebars for instantaneous response to changing riding circumstances. Riders may easily switch between different engine maps that have been downloaded and customized using the Power Tuner app. Map 1 provides sharper acceleration and higher engine revs, whereas Map 2 is better in slippery conditions because of its gradual acceleration and lower revs.
The engine benefits from a high-pressure electric pump driving a 44mm Mikuni® throttle body as part of a sophisticated fuel injection system. Because of this, the rider may expect consistent and dependable performance in various riding circumstances.
Strong wide-ratio gears and a reliable clutch are standard on the YZF450FX. This synergy improves cross-country efficiency by allowing for smoother gear changes and a more comprehensive range of motion on open terrain with variable obstacles.
The YZ450FX has a small electric starting system for the rider’s convenience. It is powered by a high-capacity and lightweight four-cell lithium-ion battery, and it is designed to reduce the number of times you have to wait for a restart on the track and to enhance convenience in other riding circumstances. To demonstrate their dedication to practical and user-friendly design solutions, Yamaha has kept the push-button starting mechanism for simple restarts.
Chassis/Suspension
The YZ450FX has a state-of-the-art bilateral aluminum frame with meticulously built upper frame bracing for optimal stiffness and longevity. It, together with the rear rack spars and the XC-tuned engine mounts, efficiently relocates the vehicle’s center of gravity. The result is a sturdy base for top-notch performance because of its optimum blend of impact absorption, rigidity, and rider input.
The Speed Sensitive System KYB® coil spring-type fork on the YZ450FX is a technological breakthrough in motorcycle suspension. Achieving race-winning handling performance is all about finding the right balance between precise handling and efficient bump absorption, and this fully adjustable fork does precisely that. The YZ450FX chassis is painstakingly mated to a KYB® shock whose damping characteristics have been finely calibrated. The bike’s performance in GNCC® is maximized thanks to the coordinated efforts of the front and rear systems.
The YZ450FX’s front brake system, with its massive 270mm front rotor and aggressive pad composition, provides exceptional stopping power and a responsive feel. Its outstanding stopping power and manageability inspire confidence in riders as they tackle rugged terrains.
The YZ450FX has a sleek design from front to back, with a 2.15-gallon gasoline tank positioned low to the ground to reduce the bike’s center of gravity. Narrowing the body’s shape and lowering the seat gives the rider more freedom to move around the machine and improve their knee grip and control. Even in the most challenging off-road situations, its well-thought-out design guarantees comfort and control.
The 2023 Yamaha YZ450FX Dirt Bike is built for off-road competition and has endure-specific Dunlop Geomax MX33 tires, which provide an excellent compromise between grip and mileage. An 18-inch rear wheel further enhances the bike’s off-road prowess. Yamaha’s dedication to innovation and performance is further shown by the fact that the cross-sectional contour of each wheel has been carefully computer-designed to minimize weight without sacrificing durability.
Additional Features
The GNCC-specific YZ450FX builds on the foundation of the YZ450F moto crosser with many modifications made with cross-country racing in mind. A composite engine guard, an 18-inch rear wheel, a sealed O-ring chain, a fuel level warning indicator, and a folding aluminum kickstand all contribute to improved off-road performance and usability, as do other features like a fuel level warning indicator and a folding kickstand for more comfortable resting and stopping.
The YZ450FX’s handlebar mounts are movable, with four configurations for optimal ergonomics. The rubber mounting system improves rider comfort by dampening unwanted handlebar vibrations. They also allow cyclists to adjust the height of the bar to their liking. The 1-1/8-inch-diameter handlebar is the ideal compromise between weight and durability, making it suitable for extreme off-road conditions.
Yamaha’s embedded graphics are notable since they are built into the vehicle’s structure. Even under extreme racing circumstances, this design strategy eliminates potential problems like peeling or damage. The 2023 Yamaha YZ450FX Dirt Bike is more appealing to the eye and more likely to retain its race-ready look for the long haul thanks to the incorporated graphics.
2023 Yamaha YZ450FX Dirt Bike – Price
The new 2023 Yamaha YZ450FX Dirt Bike is available at $9,999 only.
2023 Yamaha YZ450FX Dirt Bike – Technical Specifications
Engine
Engine | Liquid-cooled, DOHC, 4-valve (titanium), single |
Displacement | 450 cc |
Bore and stroke | 97 x 60.8 mm |
Compression ratio | 13.0:1 |
Fuel delivery | Mikuni 44 mm throttle body F.I. |
Lubrication | Wet sump |
Ignition/starting | TCI / Electric |
Transmission | Constant mesh, 5-speed |
Final drive | Chain |
Chassis
Suspension (front) | Fully adjustable 48mm inverted KYB fork / 310 mm (12.2 inches) wheel travel |
Suspension (rear) | Fully adjustable linkage-type / 318mm (12.5 inches) wheel travel |
Brakes (front) | 270 mm, floating disc / twin-piston caliper |
Brakes (rear) | 240 mm, disc / single-piston caliper |
Tires (front) | 80/100-21 |
Tires (rear) | 120/90-18 |
Critical Data
Length | 2,175 mm (85.6 in.) |
Width | 825 mm (32.5 in.) |
Height | 1,280 mm (50.4 in.) |
Wheelbase | 1,480 mm (58.3 in.) |
Ground clearance | 320 mm (12.6 in.) |
Seat height | 955 mm (37.6 in.) |
Fuel capacity | 8.2 liters (1.8 Imp. gal.) |
Wet weight | 115.2 kg (254 lb) |
Colour(s) | Yamaha Racing Blue |