20 inch bikes are generally suitable for kids aged 6 10 years.
Bmx bike size for 7 year old boy.
Bmx bikes tend to come in one frame size although there are some variations in length.
But for a child it is way more important.
To find it easily we have prepared an easy to read kids bike size chart selection by height by age by inseam for you.
As a minimum you will need at least a 23 inside leg to be able to stand over a full size bmx bike.
This calculator will recommend a bmx frame size based on your height measurement.
Feet inches centimetres approximate age wheel size.
Getting the right size bike can greatly improve your performance in any situation.
The main difference between the two is that a kid s bike will be lighter and easier to ride and a bmx will be heavier and more durable.
A 4 to 5 year old with a height of between 40 and 46 should be riding a 16 kids bike.
Most bmx bikes have 20 tires while the larger frames may use 24 tires also known as cruiser class bmx bikes.
Yes that s a bit heavy but for a boy s bmx bike it shouldn t be too much of an issue as you likely don t want your 10 year old getting 15 feet of air like it s nothing.
Rider height suggested bmx size.
Your average adult weighs 177 lbs and your average 5 year old weighs 40 lbs.
The frame is made from steel and comes out to be around 37 lbs when fully assembled.
The best size bike for a 4 year old is either a 12 inch or 16 inch wheel depending on their height.
Kids bike size chart.
Your average sized 7 year old around 4 ft child will do well on an 18 inch bicycle.
3 7 4 0 110cm 122cm.
Buy the lightest bike you can afford.
When buying a new children s bike the appropriate bike size plays a very important role.
We all know that adult cyclist that gets obsessive about how much his bike weighs.
5 7 years.
Bmx bike sizing guide.
Whether as a means of transport or just for fun childhood and cycling go hand in hand.
Although if your child is taller than average 4 ft 5 in and above consider going for the 20 inch model.
When figuring out frame size only the rider s height is important.
Meanwhile a 10 year old or older will likely use the 24 inch size.
Similarly the right size bike for a 5 year old falls into that same range.
20 inch is also the standard size for a bmx wheel and given they both have no gears the 20 inch kid s bike and bmx share a lot of similarities.
Here you can find our children s bike size chart.