Do All BMX Bikes Have the Same Size? [2022 Guide]

A common question people have before buying a new BMX is ‘are all the same size?’. BMX Bikes The short answer is no, you should choose a BMX that matches your body type to ensure a comfortable and quality ride. Being aware of the specific measurements you need to consider can significantly ease the process of purchasing your very first BMX.

Owning a BMX Finding one that matches your height is crucial for a smooth ride. Below, we will guide you through the important factors you should think about before making your purchase.

 

Top Tubes & Wheels

When evaluating wheel and top tube sizes, it's not about ‘the bigger, the better’, as mentioned earlier, you need a BMX bike that suits your build. You can find more about the appropriate top tube and wheel dimensions for your height in our article ‘Best BMX Bikes For Your Height! [2022 Guide]’.

 

What is the Top Tube?

Simply put, the top tube, also referred to as the cross-bar, is the bar that links the top of the head tube to the top of the seat tube. Therefore, you need to ensure the top tube is correct for your height as one that's too long or too short will result in an uncomfortable ride!

Selecting the right top tube is incredibly important and greatly affects your riding capability; some argue it surpasses the significance of wheel size. Once you select a BMX with the right top tube, the tyres will correspond to the bike frame and thus match your height.

 

How can you be confident that the top tube of your bike suits your height?

One method to check if your bike is the right size for your height is by taking a picture or video of yourself riding it and reviewing to see how you sit. You can also just assess it based on how it feels to ride the Bike. Do you need to stretch excessively to reach the handlebars? Or are your knees hitting the bike frame, making it feel cramped? These are clear signs that the bike size is either too large or too small for your physique.

 

If you are between:

• If your height is between 3’ to 3’8”, you should choose a BMX with a top tube length of 14.5” to 17” and a wheel size of 16 inches.
• If your height is between 3’6” to 4’6”, you should choose a BMX with a top tube length of 17” to 18.5” and a wheel size of 18 inches.
• If your height is between 4’ to 5’4”, you should choose a BMX with a top tube length of 18” to 20.25” and a wheel size of 20 inches.
• If your height is between 5’ to 5’8”, you should choose a BMX with a top tube length of 20” to 20.5” and a wheel size of 20 inches.
• If your height is between 5’6” to 6”, you should choose a BMX with a top tube length of 20.25” to 21” and a wheel size of 20 inches.
• If your height is 6’ and above, you should choose a BMX with a top tube length of 20.75” + and a wheel size of 20 inches.

 

Have a look at the infographic below which recaps all the essential information you need to know about choosing the best BMX for your height.

 

 

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