Helpful tips for buying the right bike size
What bike frame size do I need?
Choosing the right frame size is essential for a comfortable and safe cycling experience. On this page, we'll help you choose the right bike – whether it's a children's bike, city bike, mountain bike, or electric bike.
Buying a children's bicycle: how to choose the right size
For children's bikes, the size is expressed in inches, based on the wheel diameter . The right size depends primarily on your child's height and a little on their age . Below you'll find a helpful guideline.
Children's bicycle sizes
Child's age | Body length | Wheel size (inch) |
---|---|---|
2 - 3 years | 85 - 100 cm | 12 inch |
3 - 4 years | 95 - 105 cm | 14 inch |
4 - 5 years | 100 - 110 cm | 16 inch |
5 - 6 years | 105 - 115 cm | 18 inch |
6 - 7 years | 110 - 120 cm | 20 inches |
7 - 9 years | 120 - 135 cm | 22 inches |
8 - 12 years | 130 - 145 cm | 24 inch |
10 - 14 years | 140 - 160 cm | 26 inches |
Tip: Choose a bike where your child can touch the ground with both feet when sitting on the saddle. This will make them feel safer and help them learn to ride faster.
Bicycle Frame Size (Frame Height) for Adults
For adult bicycles, the size is expressed in frame size (cm) . This is also called frame height. This is the length of the frame from the bottom bracket to the beginning of the seat tube. The correct frame size depends primarily on your height .
Adult frame size table:
Frame sizes for adults
Body length | Frame size (cm) | Inner leg length (cm)* |
---|---|---|
150 - 160 cm | 42 - 47 cm | 65 - 72 cm |
160 - 170 cm | 48 - 52 cm | 72 - 79 cm |
170 - 180 cm | 53 - 56 cm | 79 - 85 cm |
180 - 190 cm | 57 - 60 cm | 85 - 91 cm |
190 - 200 cm | 61 - 63 cm | 91 - 96 cm |
> 200 cm | 64+ cm | > 96 cm |
* Tip: Measure your inseam (crotch height) and multiply it by 0.66 for city bikes or 0.68 for sporty bikes (racing/MTB). This will give you an accurate frame size.
Differences per bicycle type
Please note: the ideal size may vary slightly depending on the type of bicycle:
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Road bike / Gravel bike: preferably something smaller for maneuverability.
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Mountain bike: often with a smaller frame size for better control.
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Electric bicycle: often a somewhat higher entry, so choose carefully.
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Folding bikes: frame size is less important, but adjustability is crucial.
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Cargo bikes & tricycles: here it's more about stability than frame size.
Extra tips for children's bicycles
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It is better to choose a bike that fits well now than one that you "will grow into".
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Make sure your child can easily reach the brakes and pedals .
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The saddle and handlebars should be adjustable to allow for growth.
Are you still in doubt?
Don't worry! Feel free to contact our customer service. We're happy to help you choose the perfect bike size.