Shimano, Cannondale (Guru), Trek (Purely Custom), and Specialized (Retul), join Exit Cycling as makers of first-rate fit bikes. If you’re a fitter, a coach, or a retail store, which among these bikes is for you? Here’s your guide.

Meredith Kessler and Linsey Corbin both finished in the top 10 at the 2013 Ironman World Championships and here is an analysis of their power data files.

We show you the professional method of cleat replacement. How do you replicate the position perfectly? Are shoe markings really accurate? For more, read on.

The crew at TrainingPeaks allows us again an inside of power numbers. Today we look at the data recorded by Aussie Luke Mckenzie anf German Faris Al-Sultan.

Australian Luke McKenzie has won six Ironman races at places like Malaysia, Brazil and China. On Saturday he had the race of his life on the sport’s biggest stage, leading until Mile 16 at Kona.

Frederick Van Lierde joins his coach and not-related namesake Luc Van Lierde as Belgium’s Ironman World Champions. This Van Lierde did it with a well-balanced attack and quiet confidence.

We now present our first set of images from the 2013 GoPro Ironman World Championships in Kona, Hawaii. Frederik van Lierde and Mirinda Carfrae were the winners.

Frederik Van Lierde crafted a balanced race to win his 1st Kona title while Mirinda Carfrae exploded into the lead with a record 2:50:35 run to win her 2nd Ironman World Championship.

On our 5th day here in Kona we were busy with the bike check-in for the 2013 GoPro Ironman World Championships. And it was a long hot afternoon.

We review the Serfas Urbana 650c x 28mm tire. This unique product is custom made for one retailer, and is one of the only wide 650c tire options in the world.

Specialized athletes competing during the London Olympics were on bright orange bikes, and here in Kona the Specialized Pros ride 1974 paint scheme inspired Shivs.

Danish Pro Jimmy Johnsen is going into the 2013 GoPro Ironman World Championships ranked #12 and we were able to check out his Ceepo Viper.

Who’s coping? Who’s feeling strong? The latest word on how Leanda Cave, Rachel Joyce, Mirinda Carfrae and Mary Beth Ellis are feeling on the eve of the biggest race of the year.

There are no words adequate to describe the pointless, anarchistic, exuberant, manic, jiggly, wiggly, piggly nonsense of the annual Thursday morning Kona underpants run.

The annual Kona Slowtwitch gathering at the Cytomax / Muscle Miilk house powered by blueseventy was a huge success and more than 300 people showed up and had a good time.

We hunkered down with a pair of Reynolds’ Aero 58 and 72 wheels for a long-term test. These wheels have a very unique design among their peers, so we were eager to learn more.

Today we stopped by the Aquatic Center in Kona, perused the Expo and ran into quite a few Pros, and the race is now only 2 days away.

The folks at Quintana Roo appeared to hide the development bike they brought to Kona, but we noticed it and managed to pull it away for a few minutes.

Official Ironman World Championship activities kicked off Tuesday afternoon with a Splash and Dash kids race and the International Parade of Nations starting on Ali’i Drive and finishing at the just-opened Expo.

James Cunnama and Jodie Swallow have an excellent relationship at the races and away – and they both are highly rated coming to the 37th Ironman World Championship this Saturday at Kona.

Wednesday in Kona is the day of the Slowtwitch gathering, but of course we saw many other things. So come on in and see what we have got.

Chris Boardman is in Kona this year and he unveiled the new Boardman AiR TTE 9.8 race bike on which Ironman World Champion Pete Jacobs will compete this Saturday.

We had the opportunity today to look closer at the Argon 18 E-118 of Ironman Cozumel champion Iván Raña. He could surprise some folks on Saturday.

Another day has gone by in Kona and here are images from our second day coverage of the 2013 GoPro Ironman World Championships, and there is more to come.