Adults from 4’10” to 6’4” would find a full size 20-inch BMX bike most suitable for them.

It is, however, very important that you know how BMX bikes are measured. From that, you can pick the most fitting size for your body type and riding style.

Freestyle BMX bikes are usually measured by the top tube length. Other styles are measured by the wheel size.

In this post, we will walk you through all the necessary considerations to choose the best BMX bikes for adults. Read on to find the answer for your need.

How BMX Bikes Are Measured

There are 2 ways in which BMX bikes are measured. Firstly, by the wheel size.

Basically, they measure the diameter of the wheel.

The 20-inch BMX bike is the full size bike which you will hear many people talk about.

On the market today, you will often see wheel sizes from 20, 24, 26, or even up to 29 inches.

The second way BMX bikes are measured is by the top tube length.

Top tube varies in length. It can go from 15 inches to 22 inches.

The shorter ones are for kids or teenagers. The longer ones are for adults.

You will usually find freestyle BMX bikes measured by the top tube length because it helps riders find the perfect balance point when doing tricks.

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