2020 Yamaha YZ 450F Single-Cylinder 449

2020 Yamaha YZ450F

TUNE IN TO VICTORY

Class leading performance and suspension along with the smartphone power tuner app make this the bike of choice for race winners.

Features may include:

ENGINE

• New More Compact Rearward-Slanted Cylinder

The YZ450F’s distinct rearward-slanted cylinder design is now even lighter and more compact than before, ideally positioned in the frame for optimized weight distribution. Inside, the new head features steeper valve angles to allow for an even straighter down-draft intake port, as well as more aggressive cam profiles and larger diameter exhaust header joint working together with a higher compression bridge-box design piston, DLC-coated piston pin, and longer connecting rod to give YZ450F riders the best balance of class leading power with an all new level of controllability.

• Yamaha Power Tuner App

Breaking new ground in the industry – again – Yamaha created the Power Tuner app, which brings the power of the GYTR Power Tuner to your iOS® or Android® device. Using wireless connectivity to talk to the bike’s onboard CAN-bus network, the app allows owners to adjust air/fuel mixture and ignition timing maps to tune engine performance for track conditions, record race log information, and monitor a range of data such as maintenance and system diagnosis, engine run time, and more.

• Adjustable Fuel Mapping

A handlebar-mounted map switch allows the rider to quickly select between preloaded engine maps—loaded and configured in the Power Tuner app—to account for changing track and weather conditions.

• Electric Starter System

The YZ450F features a compact electric starter system to minimize restart delays on track and add convenience everywhere else. Powered by a high-capacity and ultra-lightweight four-cell lithium-ion battery, the system adds minimal weight.

CHASSIS/SUSPENSION

• Revised Bilateral Beam Aluminum Frame

The YZ450F’s compact aluminum frame further refines the instinctive handling that makes this Yamaha one of the sharpest machines in the class. Every aspect has been carefully retuned, with thinner main spar construction, thicker down tubes, revised top triple clamp, and all-new motor mounts that work together to optimize overall rigidity balance for excellent handling, especially in fast, bumpy conditions.

• Compact Body and New Seat Design

The YZ450F features stylish bodywork from tip to tail, including a compact fuel tank specifically designed for motocross demands. The new handlebar position is 5mm lower and 15mm forward and the seat features 10% firmer foam to assist the rider in keeping their weight forward during aggressive riding.

• New Triple Clamp with Adjustable Handlebar Mounts

The new top triple clamp design is resculpted to balance rigidity for improved steering feel, while the 4-position adjustable handlebar clamp is rubber mounted for comfort, reduced handlebar vibration and easily tunable bar position.

• Embedded Graphics

Yamaha’s unique embedded graphics are built into the bodywork for extended durability, resisting both peeling and damage.

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