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.

At Eurobike 2007 British company USE unveiled a different version of their Tula aerobars.

There are several companies that say they have rubber nobody else has. Let’s take a look at those claims, and the rubber they’re using, and see what we can glean about the state of materials in the wetsuits we use today.

If the frame of a bicycle represents the “heart” of a bicycle, it can be argued that wheels and tires represent the “soul”.

After two decades of heated declarations and ill-informed pronouncements, there remains not one shred of evidence suggesting one of these wheel sizes is inherently superior to the other. And yet…

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.

The truth is, almost every wetsuit feature has a corresponding detriment, and certain features have only the detriment, and no corresponding asset. You must decide what features matter to you.

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.

Our primer on stack & reach continues with the second chapter in the series. We examine how stack and reach enable you to understand how a given bike will, or will not, fit you.

Earlier in the decade I wrote an article on how bikes are sized, and the gist was that we ought to be looking at bikes from the point of view of head tubes and top tubes, and that’s it. — no more seat tube sizing.