A Simple Way to Choose The Correct Bike Size - With Neill Stanbury Choosing the right bike / frame size can really be a sticking point for a number of cyclists looking to purchase a new bike. So in this video we will be sharing a simple way to help you select the right frame size using a free online tool called Geometry Geeks. Expert bike fitter Neill Stanbury will also share his views on the critical areas you need to look out for, such as Stack, Reach, Seat Angle, and a couple of bonus areas.