Are you being passed by a LOT of people? That’s a very good thing, trust us. Proper bike execution is then largely a matter of doing the opposite of everyone else. In our experience, over 80% of the Ironman® field doesn’t know how to properly execute the bike. But if you made the mistake of riding too fast…that mistake now has 26 miles of running to express itself.

If you’ve made the mistake of riding too slowly…you have 26 miles of running to fix that mistake. In our experience, the difference between Could and Should is about 10 to 15 minutes - add 10-15 minutes to that sexy Could split and set up the run. In contrast, your “should” bike split is the bike that sets up the run. Your “could” bike split is the one you dream about, the one you told your friends on your last long ride when they remarked how fit you look, how hard you’ve been working, and ask you what you could ride at IMXX. Ride the Bike You Should, Not the Bike You Could The Ironman® run course is littered with the walking bodies of athletes who put up great bike splits. Therefore your focus all day is on creating conditions for success in the final six to eight miles of the run, NOT on putting up a sexy bike split. In our experience, your chances of dramatically slowing down happen in the last six to eight miles of the run. But the difference between a “good” and “bad” run can be measured in hours. The difference between “easy” bike or a “hard” bike is only about 10-15 minutes. The difference between a “good” swim or “bad” swim is only about 2-4 minutes.

The last time we checked this was an Ironman® TRIATHLON - swim, bike, and run. There’s No Such Thing as a Good Bike Followed by a Poor Run

Fastest endurance bike