Below is a collection of all of our sizing guides and charts for most of our major brands. These guides are all for guidance purposes only as customers' individual sizing may vary.
If you require a more accurate sizing please visit one of our stores and they will be able to advise as best they can.
We generally predict a persons suitable frame size by going for your overall height, which gives a good general estimation. Measurements like standover height have become a little outdated as frame geometries vary so much between bikes for different disciplines.
For Kids Bike sizing there are no hard rules, some go by age (but that can be so variable) some go by height, but most would probably want a bike a child can grow into unless its their first bike.