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Articles by Dan Empfield

Intro to Power

This is the first of monthly installments on the physics of bike riding, with an emphasis on training and racing using power meters. We’ll present our first two intro-to-power articles back-to-back.

X/Y Rules in an Angular World

In barely a month USA Cycling joins the UCI in legislating the Randy Newman ethic: “Don’t want no short people round here.” Fortunately, there is a deceptively easy alternative for both of cycling’s governing bodies.

The Aerodynamics of hand height

Floyd Landis, Fabian Cancellara, Dave Zabriskie, Levi Leipheimer have all raced with the “hands in face” position. John Cobb pulls out of his wind tunnel archives an analysis of hand heights.

Fudging for negative reach

Tri bike fitters using the F.I.S.T. system often find they need a size bigger bike for their customers versus what the fit session indicates. Here’s why.

Florida gets the last word

Drafting in Florida. Say it isn’t so! Florida gets a bad rap for the drafting at events in this, America’s flattest state. And it’s got a thing or two to say in its own defense.