Kids bike buying guide.
What size bike frame for 8 year old boy.
Kids bike size chart by inseam.
The typical best bikes for 8 to 11 year olds are the 24 inch sizes.
Sizing and buying guides menu toggle.
To measure your bike s frame size take a measuring tape and place the tape in the center bolt of your bike s cranks.
3 5 3 9 105cm 118cm.
There s also the growth spurt factor which can quickly render a bike unsuitable after only a few years.
When you re choosing a bike for your child kids bike sizing is all about the wheels.
The correct frame size is the only way to ensure that your child reaches the floor safely and easily with both feet at the lowest saddle height.
11 year old to teens bikes.
The calculation here will give you your bike s frame size.
Most 8 and 9 year olds will fit on a 20 inch wheel bike.
If your child is older than 12 and or taller than 4 8 you can start looking at adult bikes.
Meanwhile a 10 year old or older will likely use the 24 inch size.
Frames can vary in size from brand to brand so 24 inch bikes from different manufacturers may differ by up to 5 inches in height.
So the best way of finding the right size bike for them is to look at models in their age range and then match their height to the right bike.
4 7 years.
Top picks by size menu toggle.
Bike frame sizes are measured in the same way for all styles of bicycle.
2 4 years.
Finally while a bike might be advertised for a 5 year old some 5 years olds are tiny while others are huge.
If it is just the frame this will be the center point in the bottom bracket shell.
Mountain bikes all sizes.
A 16 inch wheeled bicycle for boys age 5 to 8 years with inseams between 18.
Similarly the right size bike for a 5 year old falls into that same range.
A 14 inch wheel bicycle for boys age 4 to 6 years with inseams between 16 to 20 inches.
Kid s bikes are.
Use the following as a general starting point for the boy s sizing.
That said you can figure out the right size bike without trial and error or pulling your hair out.
There s no way those two kids will be best served by the same bike.
If your kid is short a 20 inch would be suitable as well so we ve got one on our list today too.
Size brackets are wide and tend to overlap plus all bikes fit differently even if they re the same wheel size so head down to your local bike shop with your child for some fun test rides.
The best size bike for a 4 year old is either a 12 inch or 16 inch wheel depending on their height.
12 view all 12 wheel kids bikes.
Select a 12 inch wheeled bike for boys between 2 and 4 years of age with an inseam between 14 inches to 17 inches.