Most of our bikes will come with a suggested height and age range, depending on the size of the frame and wheels. Many of our bikes will come with a range of wheel sizes to choose from, ensuring you can find the right size based on age and height. For example, a 16-inch BMX bike will suit someone with a minimum height of about 100cm, while a 24-inch BMX will require a height of around 135cm to 150cm. On each product page, you will find a comprehensive size guide with recommendations for height and age, as well as detailed frame measurements. Follow the instructions on the page for how to properly take height and inseam measurements, ensuring the best fit and most comfortable ride for your child.