Sized by age and height so kids start with the right frame.
Ages ~2–4 · Height ~35″–39″
21″ · Ages ~4–6 · Height ~40″–44″ | 23″ · Ages ~6–8 · Height ~45″–49″
Ages ~8–12 · Height ~50″+
| Size | Ages | Height |
|---|---|---|
| 19″ | ~2–4 | ~35–39″ |
| 21″ | ~4–6 | ~40–44″ |
| 23″ | ~6–8 | ~45–49″ |
| 25″ | ~8–10 | ~50–54″ |
| 26″ | ~10–12 | ~55″+ |