Buyers Guide

What is the Frame Size?

You may often hear people talk about the frame size of a bike and wonder what this is. In simple terms, the frame size if the measurement taken from the centre of the pedal crank to the top of the seat-tube. Larger frame sizes have longer tubes, which increase the height of the saddle above the ground. As a bike grows (and shrinks) proportionally the length of this seat-tube grows, so does the length of the top-tube which in literal terms means that the handlebars become further away from the saddle too.

Small frames therefore have a lower seat height and shorter handlebar reach. Larger frames have higher saddles and further distance between the saddle and handlebars.

As a guide, we’ve included approximate inside leg measurements on each product page, clearly indicating whether that particular model will be suitable for you.