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Are your wheels ready to race?

What length valve stem are you using? Removable cores? What kind of sealant? What kind of extender is on your wheels? And your spares? This and more in this installment of Things That Roll.

Valve Stems and Extenders

Extender: one of the few words rhyming with “ender” that is not in Jackson Browne’s “The Pretender”. This winds Kopecky’s how-to into a race-prep chapter in “Things that Roll”.

Things that roll

In a week-long series we’ll talk about wheels, tubes, tires, how to choose them, prepare them, acclimate yourself to them, and get the most out of them during the race. We begin with a discussion of wheel depth.

Speed Concept brake tips

We give you a step-by-step guide on how to properly service rear brakes on the Trek Speed Concept triathlon bike, including a few pro tips and tricks.

Barry Roubaix Recap

We follow up on our intro to gravel racing with a short video, recap, and race report from the 2014 Barry Roubaix Killer Gravel Road Race. We talk tires, gearing, and more.

Run shoes in 5 years

In the series wrap I’ll predict what run shoes will be like in 5 years, features that will advance and recede, and possible changes in the trajectory of several leading companies.

Run shoe levers and footbeds

Running has never seen this kind of divergence in technologies and theories, from barefoot all the way to hyper-structure and custom footbeds. And everything in between.

New run technologies

The king (minimalist running) is dead. Long live the king (supportive running). This is the first of a series on how new running technologies will transform foot and lower body extremity health.

Future of Run Footwear

The features that matter in technical running footwear are different now than they were a decade or two ago. That’s a good thing. Footwear is going to look a lot different in 5 years.

Swimovate Poolmatelive

In my search for the all-inclusive wrist-worn device – to me the holy grail of sports watches – I’ve lighted on an interesting entry: this watch is most at home in the water, but almost admirably amphibious.

Gravel Bike Details

We provide an overview of a relatively new category of bikes: Those purpose built for gravel roads and gravel racing. What makes them unique? Do you want one?

Slowtwitch Mailbag – 10

We answer more reader questions in our Slowtwitch Mailbag. On tap for this week, have some very interesting information on custom paint, along with a practical query on aero positions.