2026 KTM 125 SX vs 2020 Yamaha YZ125X
Side-by-side specs. Differences are highlighted. Blank = not yet verified for that year-model (we don’t guess).
| Spec | 2026 KTM 125 SX | 2020 Yamaha YZ125X |
|---|---|---|
| Class | 125cc 2-stroke | 125cc 2-stroke |
| Displacement | 124.8cc | — |
| Cooling | — | — |
| Induction | Keihin EFI, throttle body 39 mm | Ported DOHC four-valve per cylinder head with dual overhead cams and twin throttle bodies |
| Power valve | — | — |
| Transmission | 6-speed | 5-speed |
| Front travel | 310 in | 200 in |
| Rear travel | 300 in | 160 in |
| Front brake | — | 290mm |
| Rear brake | — | 285mm |
| Front wheel | — | — |
| Rear wheel | — | — |
| Seat height | 958 in | 29.5 in |
| Weight | — | 165 lb |
| MSRP | — | $2,999 |
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).