2027 YAMAHA YZ450F

🏁🔥 2027 Yamaha YZ450F
The pinnacle of Yamaha motocross performance. The 2027 Yamaha YZ450F is built for riders who expect championship-level power, precision handling, premium suspension, and serious adjustability straight from the factory. Powered by Yamaha's potent 450cc DOHC four-stroke engine, the YZ450F combines a compact aluminum chassis, fully adjustable KYB suspension, advanced electronics, smartphone tuning, traction control, and launch control into one purpose-built motocross machine. (Yamaha Motorsports)
At its heart is a 450cc liquid-cooled DOHC four-stroke single-cylinder engine featuring four titanium valves, a forged aluminum piston, reversed cylinder-head layout, dry-sump lubrication, and 44mm Mikuni fuel injection. Yamaha designed the engine around broad, usable pulling power throughout the rev range rather than performance concentrated in one narrow area. (Yamaha Motorsports)
🔥 Performance Features:
🚀 450cc liquid-cooled DOHC 4-stroke engine
💥 4 titanium valves
🔥 13.0:1 compression ratio
💨 44mm Mikuni fuel injection
🏁 Reversed cylinder-head layout
⚡ Lightweight forged aluminum piston
💧 Dry-sump lubrication
⚙️ Compact 5-speed constant-mesh transmission
✋ Advanced disc-spring multiplate wet clutch
⚡ Electric start
📱 Yamaha Power Tuner App connectivity
🚀 Adjustable Launch Control
🛞 Three-level Traction Control
🔐 ECU Anti-Theft Lock through the Power Tuner App
🏗️ Advanced aluminum bilateral-beam frame
🔧 Fully adjustable KYB Speed Sensitive System coil-spring fork
⛰️ 12.2 inches of front suspension travel
🔥 Fully adjustable KYB rear shock
🎚️ Hand-adjustable low-speed compression clicker
💥 11.6 inches of rear suspension travel
🛑 270mm hydraulic front disc
🆕 Lightweight 220mm hydraulic rear disc
🛞 Dunlop Geomax MX33F/MX33 tires
🎯 Four-position adjustable, rubber-mounted handlebar
💺 Slim, flat rider-focused bodywork
🏁 Wide competition footpegs
🔗 Gold drive chain. (Yamaha Motorsports)
📱 Tune It From Your Phone
One of the YZ450F's standout features is Yamaha's Power Tuner App, which turns a compatible smartphone into a powerful trackside tuning tool.
Riders can adjust fuel delivery and ignition timing, select traction-control settings, customize Launch Control, record race information, monitor engine run time and maintenance data, and access engine and suspension setup guides. Yamaha also includes a simplified tuning slider for riders who want to quickly change the bike's character without building a detailed custom map. (Yamaha Motorsports)
For 2027, the system also includes an ECU Anti-Theft Lock, allowing the owner to lock the ECU through the Power Tuner App to help prevent unauthorized engine starts. (Yamaha Motorsports)
🏁 Championship-Level KYB Suspension
The YZ450F continues with Yamaha's highly regarded KYB Speed Sensitive System coil-spring fork, offering full adjustability and 12.2 inches of travel.
At the rear, a fully adjustable KYB shock provides 11.6 inches of travel and includes a convenient hand-operated low-speed compression clicker for easier trackside adjustments. (Yamaha Motorsports)
The suspension works with Yamaha's aluminum bilateral-beam frame, engineered to balance rigidity and controlled flex for confident corner entry, stability, traction, and rider feedback. (Yamaha Motorsports)
🆕 Lightweight Rear Brake System
The 2027 YZ450F receives a newly redesigned rear braking system.
Yamaha reduced the size of the rear caliper and master-cylinder pistons, revised the brake hose and rotor bolts, and uses a 220mm rear disc. According to Yamaha, the changes save approximately 180 grams while improving braking force, controllability, and linear feel. (Yamaha Motorsports)
Up front, a large 270mm hydraulic disc with a Nissin caliper delivers the strong, predictable stopping performance expected from a competition 450. (Yamaha Motorsports)
📏 Race-Ready Specifications
The 2027 YZ450F weighs just 243 pounds wet and combines that lightweight feel with a 38.0-inch seat height, 58.1-inch wheelbase, 13.6 inches of ground clearance, and 1.6-gallon fuel capacity. (Yamaha Motorsports)
Tire sizes are competition-ready 80/100-21 Dunlop Geomax MX33F up front and 120/80-19 Geomax MX33 at the rear. (Yamaha Motorsports)
🌟 Why You'll Love It
The 2027 Yamaha YZ450F is designed for riders who want a true competition motocross machine rather than a trail bike dressed like one.
You get Yamaha's broad-pulling 450cc four-stroke power, premium fully adjustable KYB suspension, a lightweight aluminum frame, disc-spring clutch, powerful Nissin brakes, electric start, adjustable traction and launch control, and one of the most comprehensive smartphone-based tuning systems in motocross. (Yamaha Motorsports)
And for riders who want the factory-race look, Yamaha also offers the 2027 YZ450F Monster Energy Edition with exclusive Monster Energy Yamaha Racing-inspired graphics. (Yamaha Motorsports)
450cc four-stroke power. Championship-proven KYB suspension. Smartphone tuning. Race-ready Yamaha DNA. The 2027 YZ450F is built for one purpose—getting to the front. 🏁💙🔥