Base Bikes' recommended sizes. Inseam gives the most accurate fit, so measure it (shoes off) if your child is near the edge of a range or between sizes.
| Bike | Rider height | Inseam |
|---|---|---|
| Base Balance | 88-99cm | 33-41cm |
| Base 16 | 99-116cm | 41-52cm |
| Base 20 | 113-130cm | 50-61cm |
| Base 24 | 125-147cm | 58-71cm |
New or cautious rider? Base recommends a minimum inseam of 44cm (Base 16), 53cm (Base 20) or 61cm (Base 24).
Measuring inseam: stand your child against a wall in socks, slide a book up between their legs like a saddle, and measure from the floor to the top of the book.
Between sizes? Confident riders can size up, while beginners are better on the smaller bike. Not sure? Bring your child in for a test ride.