17 May. Sunday 2026
Yz450f - 2025 Specifications and Reviews
The 2025 Yamaha YZ450F is a competitive motocross machine engineered for serious off-road racers and experienced riders seeking maximum performance. Its potent liquid-cooled 450cc four-stroke engine with titanium valves and advanced fuel injection delivers aggressive power delivery and reliability on demanding terrain. Known for its responsive handling and battle-proven platform, it remains a top choice for competitive motocross and high-level trail riding.
2025
General information | |
| Color Options | Team Yamaha Blue |
| Price | US$ 9999. MSRP depends on country, taxes, accessories, etc. |
| Category | Cross / motocross |
| Year | 2025 |
| Model | Yamaha YZ450F |
| | |
Engine and Transmission Specifications | |
| Starting | Electric |
| Clutch | Multiplate, wet |
| Final Drive | Chain (final drive) |
| Gearbox | 5-speed |
| Cooling System | Liquid |
| Ignition | TCI: Transistor Controlled Ignition |
| Fuel Control | Double Overhead Cams/Twin Cam (DOHC) |
| Induction | Injection. Mikuni® fuel injection, 44mm |
| Valves Per Cylinder | 4 |
| Bore x Stroke | 97.0 x 60.8 mm (3.8 x 2.4 inches) |
| Compression Ratio | 13.0:1 |
| Engine Details | Titanium-valves |
| Engine Type | Single cylinder, four-stroke |
| Capacity | 450.0 ccm (27.46 cubic inches) |
Physical measures and capacities | |
| Fuel Capacity | 6.06 litres (1.60 US gallons) |
| Wheelbase | 1481 mm (58.3 inches) |
| Ground Clearance | 351 mm (13.8 inches) |
| Overall Width | 831 mm (32.7 inches) |
| Overall Length | 2179 mm (85.8 inches) |
| Overall Height | 1275 mm (50.2 inches) |
| Seat Height | 965 mm (38.0 inches) If adjustable, lowest setting. |
| Wet Weight | 108.9 kg (240.0 pounds) |
| | |
Yz450f dimensions and frame | |
| Seat | Long, two-tone, motocross-style seat |
| Wheels | Dunlop Geomax MX33 tires |
| Rear Brakes | Single disc. Hydraulic. |
| Brake Disc Diameter | 240 mm (9.4 inches) |
| Front Brakes | Single disc. Hydraulic. |
| Rear Tyre | 120/80-19 |
| Front Tyre | 80/100-21 |
| Rear Wheel Travel | 315 mm (12.4 inches) |
| Rear Suspension | KYB® single shock; fully adjustable |
| Front Wheel Travel | 310 mm (12.2 inches) |
| Front Suspension | KYB Speed-Sensitive System, inverted fork: fully adjustable |
| Trail | 119 mm (4.7 inches) |
| Frame | Bilateral beam frame, aluminum |
Other specs | |
| Related bikes | List related bikes for comparison of specs. |
| Ask questions | Join the 25 Yamaha YZ450F discussion group or the general Yamaha discussion group. |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Insurance costs | Compare US insurance quotes from the nation's top providers. |
| Chain size | 520 |
| Spark plugs | NGK CPR8EA-9 |
| Brake fluid | DOT 4 |
| Engine oil | 10W-30 or 20W-50 |
| Update specs | Report missing specs or required updates. |
| Warranty | 30 Day Limited Factory Warranty |
| Oil capacity | 1.00 litres (1.06 US quarts) |
| Rake (fork angle) | 26.9° |
| Lubrication system | Wet sump |
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