2026 Yamaha YZ450FX vs 2026 GasGas MC450F
Side-by-side specs. Differences are highlighted. Blank = not yet verified for that year-model (we don’t guess).
Yamaha🏍️
450cc 4-stroke
photo coming soon
| Spec | 2026 Yamaha YZ450FX | 2026 GasGas MC450F |
|---|---|---|
| Class | 450cc 4-stroke | 450cc 4-stroke |
| Displacement | 450cc | 449.9cc |
| Bore × stroke | 97 × 60.9 mm | 95 × 63.4 mm |
| Cooling | — | — |
| Induction | Mikuni fuel injection, 44mm | Keihin EFI, throttle body 44 mm |
| Power valve | — | — |
| Starter | — | Electric starter |
| Transmission | 5-speed | 5-speed |
| Front suspension | KYB spring-type fork with speed sensitive damping; fully adjustable, 11.8-in travel | WP XACT-USD (AER), 48 mm |
| Front travel | 11.8 in | — |
| Rear travel | 12 in | — |
| Front brake | 270mm | 260mm |
| Rear brake | 240mm | 220mm |
| Front wheel | — | — |
| Rear wheel | — | — |
| Seat height | 37.6 in | — |
| Wheelbase | 57.9 in | — |
| Weight | 251 lb (Wet weight*** includes the vehicle with all standard equipment and all fluids, including oil, coolant (as applicable) and a full tank of fuel. It does not include the weight of options or accessories.) | — |
| Fuel capacity | 2.1 gal | 7.9 gal |
| MSRP | — | — |
Highlighted (blue) rows differ between the two. Verified manufacturer data; see each bike’s page for sources. Torque/fluid specs are on the individual pages (service-manual only).