This second in a series of articles describing our tri bike fit system lays out the axioms on which our F.I.S.T. system relies.

In this continuation of our series on tri bike fit, we tell you what we mean by terms like “seat angle” and “hip angle,” that is, what landmarks we measure to, and why we choose them.

This third article in our series on tri bike fit lays out the fitting protocol.

This article describes how we find a rider’s proper cockpit length.

This is article number five out of eleven describing our F.I.S.T. Tri bike fit process.

This article exists as part of a series of eleven on tri bike fit, and describes the proper armrest drop for a triathlete; how to measure it; how to determine it.

This description of how to determine the proper tri bike riding hip angle is part of a process in which we describe the F.I.S.T. tri bike fitting process.

This is the second to last installment in our explanation of our F.I.S.T. tri bike fit process.

This is an article in a series describing our F.I.S.T. process for tri bike fitting, and in here we lay out the state of the art in tools for best practices.

This is the final installment of our series on our F.I.S.T. tri bike fit process, and takes the metrics we’ve generated and outputs your “best” bike.

It is not that often that a person needs a custom bike, but this is the most typical of circumstances when a custom is indicated.

It’s one thing to comprehend concepts like trail and steering axis and gyroscopic forces, another thing altogether to know with precision how a bicycle is going to handle once a design is executed in the form of a road-ready machine.