BMX Bike Size Chart report
Bicycle Motocross (BMX) is a type of off-road bicycle vehicle, named because the tires are thicker, and the race track is very similar to the track used by off-road motorcycles. BMX bikes are generally 20 inches, which can better meet the requirements of lightness and compactness during fancy performances.
The sport of BMX originated in California in the 1960s. In the early 1970s, the United States established the earliest BMX organization, which is also considered the symbol of BMX becoming an official sports event. In April 1981, the International BMX Alliance was formally established. In the 2008 Beijing Olympic Games, BMX became the official sport of the Olympic Games.
The BMX bike is similar to the ordinary bicycle in daily life. Still, the materials and performance are different: the body made of special material is stronger, lighter, and shock-resistant. BMX bikes are quickly gaining popularity among youth. The following article provides a BMX bike size guide to help people choose the right one.
BMX Bike Size Guide
In 1983, the action-adventure film "BMX Bandits" was released hotly. This film is the debut of Hollywood actress Nicole Kidman and is also known as a classic of BMX movies. The BMX movement originated in California in the 1960s, and in a short period, it conquered the entire United States with its unique charm. For teenagers, the sport is inexpensive and doesn't require a drive too far from home. In the early 1970s, the United States established the earliest BMX organization, which is also considered the symbol of BMX becoming an official sports event. The International BMX Federation was formally established in April 1981, and the first World BMX Championship was held in 1982. BMX, a unique sport, had developed rapidly worldwide by this time.
BMX is divided into freestyle BMX and racing BMX. Different terrains have different technical requirements for bicycles. A racing BMX is significantly different from a freestyle trail bike. Freestyle BMX usually uses U-type brakes, while racing BMX vehicles usually use V-type brakes, only for racing cars to maintain stability at high speeds. Freestyle trail bikes have a shorter wheelbase to allow for quicker turns. The right BMX bike size for you is dependent on your height and age.
BMX Bike Size Chart
BMX bikes tend to come in one frame size, although there are some variations in length. It is the wheel size that can be changed. A full-sized BMX bike comes with a 20" wheel, but smaller wheel sizes are available for younger riders. A handy size chart will help you choose a bike frame that will work best based on either your height or age.
| Rider Height | Approximate Age | Suggested BMX Wheel Size |
|---|---|---|
| 3'7" - 4'0" | 5 - 7 years | 16" |
| 4'0" - 4'10" | 7 - 11 years | 18" |
| 4'10" - 6'4" | 11+ years | 20" |
| Rider Height | BMX Frame Size | Toptube Length | Bar Rise | Bar Width |
|---|---|---|---|---|
| 4'4" & under | Micro | 15" - 16.5" | 2" - 2.5" | 20" - 22.5" |
| 4'2" - 4'10" | Mini | 16" - 17.5" | 2" - 3.5" | 21" - 23.5" |
| 4'6" - 5'1" | Junior | 17" - 18.5" | 3" - 5" | 22" - 25" |
| 5' - 5'4" | Expert | 18.5" - 19.5" | 5" - 7" | 25.5" - 27" |
| 5'2" - 5'6" | Expert XL | 19.5" - 20" | 6" - 7" | 25.5" - 27" |
| 5'3" - 5'8" | Pro | 20" - 20.5" | 7" - 8" | 27" - 28" |
| 5'7" - 6' | Pro XL | 20.5" - 21.5" | 8"+ | 28" |
| 6' & over | Pro XXL | 21.5" - 22" | 8"+ | 28" |
Conclusion
BMX bikes come in many different sizes, from the micro, mini, junior, expert, expert XL, PRO, PRO XL, etc. A frame's size is determined by measuring the top tube length of the frame. The top tube (tt) measurement is taken from the center of the seat tube to the center of the head tube. To determine your frame size, you must measure your height. Always make sure you can stand over the frame with a minimum 2cm gap between you and the top tube. As a minimum, you will need at least a 23" inside leg to stand over a full-size BMX bike.
