2012 Challenge Roth champion James Cunnama is back to defend his title and we took a closer look at his 56cm Cervelo P5-3 a couple days before it is in full action.

Do your valve extenders rattle? Can your friends hear you coming from a mile away because of your noisy race wheels? We show you a simple trick to solve your woes.

The DATEV Challenge Roth team has been busy the last few months and now the race is upon us with racers now arrived in town and the expo getting busy.

In a follow-up to our in-depth technical piece on the new Mavic CXR60, we offer detailed photographs and a ride report for the clincher version of this wheel set.

Amanda Stevens flew to the A2 Wind Tunnel in NC to meet up with Mike Giraud from Blue bicycles to get fitted and fine tuned on her new race bike.

Nico Lebrun of France and Helena Erbenova of the Czech Republic won the challenging course at XTERRA France; Photo Gallery by Dave Nicholas.

We continue our analysis of the current state of affairs in triathlon bike service. This article interviews two high-end tri bike dealers, to hear their thoughts on the situation.

Eneko Llanos had an impressive sub-8 performance at the European Ironman Champs in Frankfurt while several other favorites faltered. Camilla Pedersen ran down Jodie Swallow in her first Ironman outing and recorded a very fine sub-9 time.

In this issue of The Weekend Box we look at the 2013 Celtman Extreme Scottish Tri, Ironman 70.3 Haugesund, the return of The Man, XTERRA France and a new Challenge event in North America.

We take a detailed look at the Michelin Pro 4 tire line. This versatile tire now has four distinct models, new sizes, and even 650c. We also call in an expert to do Crr testing.

Olympic champion Alistair Brownlee made the brutal climbs of Kitzbühel look easy, completing the maximum 22.3 percent section on the bike and a similarly steep run in 55:24 with a 36 seconds margin over Mario Mola.

Jodie Stimpson joined Alistair Brownlee in giving the British a monopoly on gold medals on the fiendishly steep hills of the Kitzbühel WTS course; surprisingly, Stimpson had the bigger margin of victory.

The Wing57 helmet is the newest helmet from Rudy Project, and follows the popular Wingspan model that was launched in 2009. We took a closer at it.

Top pro Richie Cunningham was injured on July 4 north of Boulder after he crashed his bike trying to avoid a pickup truck which he said purposely slammed on the brakes in front of him in an act of road rage.

German Pro Maik Twelsiek had a somewhat forgettable season in 2012 but looks to be back at full strength this year. He had a video chat with us.

We look at the current state of triathlon bike service and repair. With new designs, integrated parts, and endless technology, how does the retailer prosper?

Lloyd Thomas and his wife Britta own CycleFit, a bike fitting studio where at any given time you might encounter various ProTour riders or Pro Triathletes there.

Age grouper Leslie Sanderson from Ottawa was the second fastest age grouper at Ironman 70.3 Mont Tremblant – by 7 seconds. Now where were those 7 seconds lost? We checked in with this fast 46-year old.

Alison Powers of team NOW and Novartis is a very versatile bike racer and is considered a threat in any time trial. We looked closer at her Specialized S-Works Shiv TT.

Greg Billington and Jennifer Spieldenner took the wins at 5i50 St. Louis last weekend and here is an image gallery from the event courtesy of John Lynch.

The Skagerrak Airport Triathlon took place in the commercial airport in Skien, Telemark in Norway and most of the bike segment and the run happened at the airstrip.

The Challenge Family said its event licensee in Denmark, YWC Sports, breached a contract when it sold its company to Ironman, but the nature of the breach hasn’t been disclosed.

This edition of the mailbag covers three topics – muscle fiber recruitment, speedsuit effectiveness, and whether or not triathletes should include road bike training into their routine.

Canadian police officer Andrew Armstrong won the M40-44 age group at Ironman 70.3 Mont Tremblant not really during the swim, bike or run, but in transition. Without the fast transitions he would have been third.