Current Yamaha Motorcycle Off-Road 2018-YZ450FX

2018 Yamaha YZ450FX Base

2018 Yamaha YZ450FX Base

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Exterior Colors:

  • Year 2018
  • Make Yamaha
  • Model YZ450FX
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Product Details Specifications Photos
2018 Yamaha YZ450FX Base

2018 Yamaha YZ450FX Base

  • Year 2018
  • Manufacturer Yamaha
  • Model Name YZ450FX
  • Trim Name Base
  • Generic Type (Primary) Off-Road
  • Engine Type DOHC 4-stroke; 4 titanium valves
  • Displacement 449cc
  • Cooling liquid-cooled
  • Bore 97.0 mm
  • Stroke 60.8 mm
  • Compression Ratio 12.5:1
  • Fuel System Keihin® fuel injection, 44mm
  • Ignition TCI: Transistor Controlled Ignition

2018 Yamaha YZ450FX

YZ450F-INSPIRED. CROSS-COUNTRY WIRED.

Designed for closed course X-Country racing, combines light, nimble handling with the power of a 450.

Features may include:
  • Engine
Cross Country-Tuned YZ450F Power

YZ450F-style 449cc liquid-cooled DOHC four-stroke, with forward-positioned straight intake, delivers massive power specifically tuned for cross country racing, to challenge for race victories in the very competitive GNCC® and Hare Scrambles race series.

Innovative Engine Design

The position of the engine moves the rotational mass of the cams towards the center of the bike which allows for a straight shot, down-draft intake and straight exhaust port for ultimate performance. This also keeps the airbox up high, out of dust and mud/water.

Wraparound Rear Positioned Exhaust Layout

Lightweight YZ450F-spec exhaust system maximizes engine power while centralizing mass, thanks to the innovative wrap-around header design.

  • Chassis/Suspension
Bilateral Beam Aluminum Frame

YZ450F-based frame offers a compact size while optimizing mass centralization. With its extensively tested assembly of aluminum forgings and extrusions complete with model-specific engine mounting, the FX frame retains legendary Yamaha handling and response.

Advanced YZ450F Front Fork

Fully adjustable YZ450F-based KYB® spring-type fork with speed sensitive damping delivers precise, fade-free handling.

Cross Country Shock

The rear linkage and KYB® shock provides 11.6 inches of travel with adjusters for high- and low-speed compression damping, rebound and spring preload—and features a large piggyback reservoir for excellent damping and fade resistance.

  • Additional
GYTR® Power Tuner Ready

Accessory GYTR Power Tuner lets owners adjust air/fuel mixture and ignition timing maps to match engine performance characteristics to the rider and race conditions in a matter of seconds with the push of a few buttons.

Real World Tough Features

Rugged plastic skid plate, quick-adjust clutch, aluminum handlebars and a side stand are standard for added rider convenience. Thanks to a WR-style fuel level sensor in the tank, the YZ450FX includes convenient fuel level and engine warning indicators on the handlebar.

Simplified Servicing

Redesigned air cleaner cover provides tool-less access to the air filter, positioned at the front of the bike to avoid roost from the rear wheel. A high-quality sealed O-ring chain is tough and durable.

Engine

Engine Type DOHC 4-stroke; 4 titanium valves
Displacement 449cc
Cooling liquid-cooled
Bore 97.0 mm
Stroke 60.8 mm
Compression Ratio 12.5:1
Fuel System Keihin® fuel injection, 44mm
Ignition TCI: Transistor Controlled Ignition

Drivetrain

Transmission Wide-ratio constant-mesh 5-speed; multiplate wet clutch
Final Drive O-ring chain

Suspension

Front Suspension KYB® spring-type fork with speed sensitive damping; fully adjustable
Front Travel (in./cm.) 12.2-in
Rear Suspension KYB® single shock; full adjustable
Rear Travel (in./cm.) 12.5-in

Brakes

Front braking system Hydraulic disc, 270mm
Rear braking system Hydraulic disc, 245mm

Wheels & Tires

Front Tires / Model 90/90-21 Dunlop® AT81F
Rear Tires / Model 120/90-18 Dunlop® AT81

Dimensions

Length 85.2 in
Width 32.5 in
Height 50.4 in
Seat Height 38.0 in
Wheelbase 57.7 in
Raking Angle Degrees 26.3°
Trail 4.5 in
Ground Clearance 12.8 in

Capacities

Fuel Capacity 2.0 gal

Weights

Weight Wet: 262 lb

Warranty

Warranty 30 Day (Limited Factory Warranty)

Product Photography

Warning WARNING: Operating, servicing and maintaining a passenger vehicle, an off-highway motor vehicle or a recreational marine vessel can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle or vessel in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle or vessel. For more information go to https://www.p65warnings.ca.gov/products/passenger-vehicle and https://www.p65warnings.ca.gov/products/marine.