Yamaha YZ125X vs Yamaha YZ250X ergonomics

Rider fit: reaching the ground

The Yamaha YZ125X has a 970 mm seat; the Yamaha YZ250X sits at 975 mm — a 5 mm difference. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 97 cm for the Yamaha YZ125X and 98 cm for the Yamaha YZ250X.

That makes the Yamaha YZ125X the easier reach to the ground — the safer pick for shorter riders or anyone who wants both feet planted at a stop — while the Yamaha YZ250X gives taller riders more legroom and a more open knee bend. Load your own height and inseam into the simulator to see exactly how each one fits you.