Boys Bikes

Kids bike sizing is based on your child’s height and age, with wheel size being the main indicator. Smaller wheels suit younger or shorter riders, while larger wheels are better for older kids who need more speed and stability. As a general guide, 12" bikes suit ages 2–4, 14" bikes suit 2–5, 16" bikes suit 3–6, 20" bikes suit 5–9, and 24" bikes suit 8–11, though height is always more important than age when choosing the right fit and age is there as a general guide. We recommend measuring your child's height and inseam then checking our online sizing tool, or heading into one of our stores for a professional bike fit.

Wheel size and age roughly align, but your child's height is a more reliable guide than age alone. Smaller wheels like 12 and 14 inch typically suit toddlers and early primary school age, while larger sizes like 24 and 26 inch are designed for older kids approaching their teenage years.

Training wheels can be helpful for very young or beginner riders who are still developing balance and coordination. Many parents find that starting on a balance bike first and then moving to a pedal bike with training wheels can help kids learn to ride more quickly and confidently.

For a first bike, prioritise a lightweight frame that is easy for your child to handle and manoeuvre. If the child is under 2 years old a balance bike is an excellent first choice for learning balance and control, once they are scooting along confidently you can switch to a pedal bike with training wheels. If your child is over 2 years old some parents choose a pedal bike and remove the pedals and training wheels so that the child can learn to scoot and balance first before learning to pedal while some choose to go straight to pedalling, all children develop motor skills differently so introducing them in a safe, controlled and fun way will set them up for success.

A good sign your child has outgrown their bike is when their knees are rising above, or hitting the handlebars while pedalling, or the seat cannot be raised high enough for a comfortable leg extension. Riding a bike that is too small can affect control and enjoyment, so it is worth checking fit regularly as kids grow quickly.

Boys bikes in this range are styled and designed with boys in mind, but the most important factor is always fit and function rather than colour or branding. Focus on size and features that match your child's age, height, and riding ability to ensure the best experience on the bike.

Finding the right bike size can feel tricky, as different bike types have slightly different geometries. To make it easier, we’ve created a Find Your Size tool. Simply enter your height and inseam measurements (or those of the person you’re shopping for), and we’ll recommend the best size for each bike and pre-select the recommended option for you.

Not sure of your inseam measurement? No worries! We provide an estimated inseam measurement based on your height to help keep your recommendation as accurate as possible.

You can find the tool on each product page or at the top of categories when browsing. Try Find Your Size.