2025 KTM 125 SX vs 2025 Yamaha YZ125X
Side-by-side specs. Differences are highlighted. Blank = not yet verified for that year-model (we don’t guess).
| Spec | 2025 KTM 125 SX | 2025 Yamaha YZ125X |
|---|---|---|
| Class | 125cc 2-stroke | 125cc 2-stroke |
| Displacement | 124.8cc | 125cc |
| Cooling | — | — |
| Induction | Keihin EFI, throttle body 39 mm | reed-valve inducted |
| Power valve | — | — |
| Transmission | 6-speed | 6-speed |
| Front travel | — | 11.8 in |
| Rear travel | — | 12.4 in |
| Front brake | — | 270mm |
| Rear brake | — | 240mm |
| Front wheel | — | — |
| Rear wheel | — | — |
| Seat height | 37.8 in | 38.2 in |
| Weight | 203.6 lb | 212 lb |
| 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).