People talk about a bike fit like they’re getting measured up for a bespoke suit, but it is more than simply sizing.
Instead we should think of it as finding the perfect distribution of rider weight. A bike that does not distribute the rider across the bike in the right way may ride ok, but it won’t feel like it is an extension of the rider, it won’t feel a part of you. It fights with the rider rather than working with them.
Handling is not just about frame angles and trail; a bike that handles well is one that is balanced with the rider’s weight in the right place.