When figuring out frame size only the rider s height is important.
Bmx bike sizes by height.
This calculator will recommend a bmx frame size based on your height measurement.
Find your height on the left column s for road bikes and mountain bikes.
Find your inseam across the top in either inches or centimeters cm find where the two columns intersect this is your general frame size.
Most bmx bikes have 20 tires while the larger frames may use 24 tires also known as cruiser class bmx bikes.
Others have not the good news is we have the option of knowing stack and reach and this will tell us how close the fit is for you.
20 wheels are the most common and are the true size for bmx.
Height ft in cm top tube in crank size mm 4 122.
As a minimum you will need at least a 23 inside leg to be able to stand over a full size bmx bike.
I see kids end up with the wrong size bike all too often and it makes me sad.
The top tube tt measurement is the most important measurement when considering a new bike.
Bmx bikes come in a bunch of different sizes ranging from 12 all the way to 26.
This is more important than wheel size.
Bmx bikes come in multiple wheel sizes ranging from 12 to 24 with 20 being the most popular.
Including 20 25 20 5 20 75 and 21.
Bmx bike frame sizing is generally measured in inches in.
Although individuals vary if you happen to be between 5 feet 8 inches and 6 feet tall an 18 inch bike would be an ideal bike for you.
It is important to note that different kinds of bikes also have different sizing a mountain bike won t fit the same size as a road bike and a bmx won t fit the same size as a mountain bike.
The most popular sizes are in the 20 range.
It is therefore essential to do your research and look up the specific sizing of the bike you are after read reviews use size charts and ask.
Find the x and for your height and look at the frame size in the column heading.
Some manufacturers have worked on the mathematics and geometry to keep the differences closer than this.