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.

Today we are starting with our annual coverage of the Ironman World Championships in Kona. We spent time on the pier, the Queen K and Alii Drive.

We encountered Chris Legh on the Queen K highway during the 2013 Ironman Kona week and he kindly stopped and let us look closer at his Trek Speed Concept.

Continental quietly unveiled a new version of their popular GP4000 S tire at Eurobike this year. We got in touch with them for more tech information to satisfy our tire geeks.

The weekend before Kona brought world class runs and finish times at Challenge Barcelona, World Cup sprint wins by Olympic medalists, and great bike splits at Life Time Fitness Dallas.

No dominant force, a few key players missing, some usual favorites battling physical woes and many talented contenders make the Ironman World Championship women’s elite race maddeningly difficult to pick

We look at a very cool Kickstarter campaign called Rideye. This device is a small video camera and ‘blackbox’ recorder for your bicycle that can detect a crash.

Attention Slowtwitchers! For one week only, Specialized will match your donation to the WBR Charity Challenge! Read on to find out more.

Jessie Donavan is in Kona to race the Ironman World Championships for the first time. The 2013 Ironman South Africa champion though appears to be calm and collected and has her family with her for support.