Yamaha YZ 450FX vs KTM SX 450 F (2026)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Yamaha YZ 450FXstacks up against the KTM SX 450 F. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Yamaha YZ 450FX | KTM SX 450 F |
|---|---|---|
| Model year | 2026 | 2026 |
| Price | $10,199 | $11,649 |
| Engine | 450 cc | 449 cc |
| Weight | 113 kg | 102 kg |
| Seat height | 955 mm | 958 mm |
| Fuel capacity | 7.0 L | 7.0 L |
| Fuel type | petrol | petrol |
| Transmission | Manual, 5 speed, Chain | Manual, 5 speed, Chain |
| Front brakes | Hydraulic Disc | Hydraulic Disc |
| Rear brakes | Hydraulic Disc | Hydraulic Disc |
| Tires | Dunlop® Geomax MX33F 80/100 R21 / Dunlop® Geomax MX33 120/90 R18 | Dunlop® GEOMAX MX34 80/100 R21 51M / Dunlop® GEOMAX MX34 110/90 R19 62M |
Yamaha YZ 450FX vs KTM SX 450 F — which should you buy?
Picking between the Yamaha YZ 450FX and the KTM SX 450 F usually comes down to the numbers you care about most. On paper, the Yamaha YZ 450FX brings its published horsepower in a 113 kg package, while the KTM SX 450 F counters with its own power figure at 102 kg. On price, the Yamaha YZ 450FX has the lower MSRP.
Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: