2021 KTM 125 SX vs 2020 Yamaha YZ125
Side-by-side specs. Differences are highlighted. Blank = not yet verified for that year-model (we don’t guess).
| Spec | 2021 KTM 125 SX | 2020 Yamaha YZ125 |
|---|---|---|
| Class | 125cc 2-stroke | 125cc 2-stroke |
| Displacement | — | — |
| Cooling | — | — |
| Induction | Single carburetor (K&J) | Single carburetor |
| Power valve | — | — |
| Transmission | 5-speed | 5-speed |
| Front travel | 200 in | 120 in |
| Rear travel | 165 in | 135 in |
| Front brake | 300mm | 280mm |
| Rear brake | 245mm | 245mm |
| Front wheel | — | — |
| Rear wheel | — | — |
| Seat height | 34.2 in | 34.5 in |
| Weight | 140 lb | 165 lb |
| MSRP | $2,799 | $349 |
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).