We attempt to answer how likely supplement contamination causing an AAF (Adverse Analytical Finding) actually is, as well as what simple steps athletes can do to protect themselves.

So you’ve been asked to pee at least 90ml into a cup. What happens next? It gets sent to a lab, and the lab analyzes it. We examine that process.

An athlete needs determine which supplements are appropriate; and then where to get them. Is cGMP enough?

Here are images from a F.I.S.T. Bike Fit Workshop just concluded, along with a description of just what goes on here.

Bragi’s Dash occupies an interesting niche in the market. It takes a whole bunch of things people use – activity tracker, music player, Bluetooth headset – and wraps them all together in a totally waterproof package that you can control with a dizzying array of physical gestures and touch controls.

Updates from Suunto, Polar, Garmin and more.

More single-ringers! Look inside for some real muscle bikes. Some of the owners of the bikes herein don’t ascribe to the use of the X-SYNC rings.

With the arrival of 2017, that marks the close of the 8th annual Rappstar Charity Challenge for World Bicycle Relief. This year, we – and I want to emphasize that it is a collective effort by all of us – raised $73,833.

Here is the first of several photo galleries of Slowtwitchers who’ve eschewed polyringamy for the monoring.

Gusts increase the yaw seen by a rider, making it important to understand the transient effect of winds.

Two years ago drivetrain friction was on low burn. All of a sudden it’s a hot topic.

It’s that time of the year again! For the eighth year in a row, it is time for the annual WBR fundraiser that puts bikes into the hands of MANY well-deserving folks around the world.