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52cm sizing comparison

At about 51cm or 52cm you enter a size range where just about everybody's bikes are built with 700c wheels. Here, there's a convergence of geometry, but a divergence in handling.

58cm sizing comparison

When you get to the 58cm size, tri bikes diverge geometrically. Why? Because they can. The height of these bikes is similar, one to the next. But in reach, there's more of a divergence.

Inputs and outputs: Volume 2

What is important? What ought to matter? The answers depend on who you are and what are you're trying to achieve. You are a tri bike's designer, for the purpose here; good steering geometry the goal.

Small bike sizing comparison

Are you 5'6" or shorter, or have an interest in one who is? Here is an assortment of small tri bikes, and where they fall along the geometric gradient of long, short, tall and narrow.

Graphing geometric themes

The exercise here is in the understanding of a tri bike's frame geometry. There are several things worth noting, and this ought to impact, or at least inform, your buying decisions.

Inputs and Outputs: Volume 1

In about a month, I'll have two bikes in my garage: a P3 and a Slice. The P3 was an output, that is, it was the result of a process. The Slice was an input: It commenced a process. Confused? Let me explain.

On Liveability

The swim portion of the Freshwater Trust Portland Triathlon takes place adjacent to a Superfund site. Yet, Triathlete magazine dubbed this the "Greenest Race in the World." Read how.

On Disaster

In seven years of organizing triathlons there has been only one thing, one entity, that has caused me to seriously consider a different line of work: the New York State Department of Transportation.

On Technology

I was educated as a computer science engineer. I spent long nights searching for misplaced semicolons and fussing over finicky EPROMs. Thank the Good Lord I am now a race director.

The Needle and the Damage Done

WADA has updated its list of banned substances for 2010. There are notable changes to last year's list and, if you're an AGer, don't think this doesn't apply to you.

Adjust your Exit bike

It's a bit of inside baseball, only for hard core bike fitters and those who follow the process as a hobby. The Exit fit bike - the standard for tri bike fitting pros - undergoes a protocol change.

On Beauty

The finish is the focal point of any triathlon. Typically blow-up arches are employed, accompanied by the ever-present drone of gas generators. For an event intent on embracing environmental sustainability, that wouldn't do.