Bike Size-SKYS Bicycle Technology Co., Ltd.

The time has come for your child’s very first bike, or maybe something new in a larger size. While there are tons of bikes out there, finding one that fits doesn’t need to be difficult. We’re here to help!

Q: What are the sizes based on?

A: Kids' bike sizes are best determined by wheel size. This directly correlates to the frame size: as the diameter of the wheel increases, so does the frame size of the bicycle.

Q: Do bike sizes correlate to kids’ ages?

A: Yes and no. You can estimate what size bike your child will need based on their age, but the best way is going by their height. Kids’ heights can vary quite a bit, what with the growth spurts and all, so using their height instead of age will provide a much more accurate way to determine the appropriate bike size.

Q: Is my child too young to ride?

A: It’s always good to start learning early. But if your child isn’t ready to ride yet, or you just want to bring them along for a longer outing, we’ve got trailers and child carriers that easily attach to your adult-sized bike.

Schwinn SmartStart

Kids deserve bikes that are made just for them. Schwinn SmartStart bikes are engineered for kids’ proportions so kids in motion can stay in motion. Thanks to the more accurate fit, added comfort, and improved handling, little riders learn to cruise with confidence. Check out our Schwinn SmartStart page to learn more about how it works! Since kids aren’t all the same size, we make SmartStart bikes in multiple sizes so every kid can enjoy them. Let’s dive into a little explainer about each of our different sizes!

Height ranges overlap, so if you need to choose, we recommend the larger size.

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Lightweight Kids Balance Bike for Early Riding and Balance Training

The Lightweight Kids Balance Bike for Early Riding and Balance Training is specially designed to help toddlers and young children develop essential balance and coordination skills before learning to ride a pedal bicycle. Its ultra-lightweight frame allows easy handling, while the pedal-free design encourages natural balance development. With a stable structure and smooth steering, it ensures a safe, comfortable, and enjoyable first riding experience for early learners.

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Colourful Kids Bike with Training Wheels

Colourful Kids Bike with Training Wheels is specially designed to help young beginners learn cycling with confidence and safety. Featuring a sturdy frame, supportive training wheels, and an eye-catching colourful design, it ensures a fun and stable riding experience. Perfect for outdoor play, it encourages balance development and active lifestyles in children.

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Kids Off-Road Bike – Lightweight Design for Outdoor Fun

Kids Off-Road Bike – Lightweight Design for Outdoor Fun is built to give children a safe, stable, and enjoyable riding experience. Featuring a lightweight frame, it allows easy handling and better control for young riders. The durable construction ensures long-lasting use, while the all-terrain tires provide smooth performance on different surfaces such as parks, streets, and light trails. With a focus on safety and comfort, this bike helps kids build confidence, improve riding skills, and enjoy more outdoor activities with ease and excitement.

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Kids Mountain Bike – Lightweight, Durable & Safe Off-Road Bicycle

Kids Mountain Bike – Lightweight, Durable & Safe Off-Road Bicycle is designed to give young riders a confident and enjoyable riding experience. Built with a lightweight yet sturdy frame, it is easy to handle while maintaining excellent durability for long-term use. The bike features a reliable braking system and all-terrain tires, making it suitable for both paved roads and outdoor trails. With a focus on safety, comfort, and control, it helps kids develop riding skills while enjoying every adventure outdoors.

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All-Terrain Dual Suspension Mountain Bike

The All-Terrain Dual Suspension Mountain Bike is designed for riders seeking comfort, control, and durability on diverse terrains. Its dual suspension system absorbs shocks effectively, while the sturdy frame and responsive handling provide a smooth and confident riding experience on trails, gravel paths, and outdoor adventures.

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Full Dual Suspension Mountain Bike for Off-Road Adventures

The Full Dual Suspension Mountain Bike for Off-Road Adventures is engineered to deliver exceptional comfort, traction, and control on challenging terrain. Featuring front and rear suspension, a durable frame, and reliable components, it effectively absorbs impacts from rocks, roots, and rough trails. Designed for outdoor enthusiasts, it provides a smoother ride, improved stability, and greater confidence when tackling demanding off-road routes and mountain trails.

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Women’s Urban Commuting Bicycle

The Women's Urban Commuting Bicycle is built to provide comfort, convenience, and reliability for everyday city travel. Featuring a stylish step-through frame, ergonomic riding geometry, and dependable components, it delivers a smooth and enjoyable riding experience. Whether commuting to work, running errands, or enjoying leisure rides around town, this bicycle offers excellent maneuverability, rider comfort, and practical functionality while maintaining a modern and elegant appearance.

We've Got Your Back

Next step: get out that measuring tape! Once you find the right bike size for your child, you’ll be ready to shop. But don’t worry, you’re not on your own. Watch our video on learning to ride, or check out our kids' bike assembly and helmet fitting guides for some extra support. You’ll have them riding in no time!

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Colourful Pink Kids Bicycle with Training Wheels and Adjustable Safety Frame

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Hardtail Mountain Bike

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Portable Silicone Collapsible Water Bottle for Travel, Hiking and Outdoor Use

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Lightweight Kids Bicycle with Training Wheels China Suppliers and Factory

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Guide to Kids' Bike Sizes