Bike Size Guide
"Ordering bikes online is becoming more and more popular."
You don’t need to worry about trying a bike out for size at a shop so long as you know certain things about yourself, or the rider the bike is going to be for.
You can often find your correct bike size just by your height, but it’s beneficial to know your inside leg measurement as well.
To measure the inside leg (inseam), with shoes on, have the rider stand against a wall, with feet slightly apart. Place a hardbound book between legs and raise until the spine of the book firmly hits the rider’s crotch.
Level the book with the floor and measure from the ground up to the spine of the book to find your inside leg measurement.
The bike wheel size is measured from the outer edge of the tyre to the opposite side outer edge of the tyre.
The bike frame size is measured from the point where the seat post enters the frame to the centre of the chainwheel.
12" wheel
2 - 4 years
90 - 105cm
14" min leg
14" wheel
3 - 5 years
100 - 115cm
15" min leg
16" wheel
4 - 6 years
110 - 125cm
16" min leg
18" wheel
5 - 8 years
115 - 130cm
18" min leg
20" wheel
6 - 9 years
120 - 135cm
20" min leg
24" wheel
8 - 11 years
130 - 145cm
23" min leg
26" wheel
11+ years
140 - 160cm
25" min leg