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by Mat Steinmetz
Optimizing your bike position, equipment, and setup is free speed. Not monetarily free, but free as in you’ll go faster without an increase in form or fitness.
Triathlon’s sequence of events sees that as the you go from swim to bike to run, the resistive forces (water, fast moving air, slow moving air) that inhibit forward motion decrease. As an athlete, looking to dose your energy across an 8-17 hour day, throwing your effort into the wind is not a great use of that energy.
In this installment, since most athletes spend at least half of their race duration working against fast moving air, I’m going to focus on the bike.
Aerodynamics and equipment optimization continues to be a polarizing topic. Some embrace it while others try and pass it off as a fallacy. Athletes who continue to ignore the science put themselves at a material disadvantage. If I take two of the SAME athlete and optimize one and not the other, for a given effort, you can’t argue that one will not cover the course faster than the other.
An athlete needs to check all the boxes. Buying a set of fast tires doesn’t mean you can take the week off from training. But if you’re serious about improving your performance, you will go faster without an increase in fitness by optimizing your bike position, equipment, and setup.
My first recommendation would be to get a professional bike fit from an experienced fitter in your area. A bike fit is the biggest performance upgrade you can make to your bike. You’re looking for SPEED. Roughly 80% of our energy on a bike is used to overcome fast moving air, road friction, and other resistive forces. In fact, the only reason we ride in the TT position is to reduce aerodynamic drag so we can ride faster for a given output.
1. A good TT position starts with comfort. Comfort is relative to the individual and those that are new to the position will find it unnatural at first. However, the unique thing about the TT position is that it is highly adaptable. An athlete should be able to sustain their TT position for the duration of their event.
2. Next is power. Power is the ability to pedal the bike without restriction within a range of accepted biomechanical ranges. There are a lot of moving parts to this, but the goal is freedom of movement, not to increase or decrease power. Unless something was way out of norm with an athlete’s position, it’s difficult to objectively prove this.
3. Aerodynamics is the last goal of the fit, but is often a result of the initial fit process. I’ve been to the wind tunnel and velodrome with a lot of athletes to look at aerodynamics. I’ve seldom changed an athlete’s bike position to chase a lower drag number. Most of the time the athlete’s bike position and posture has already been optimized to be as low as possible while maintaining comfort within their biomechanical profile. Typically, details such as arm position, elbow width, and hand height are the only tweaks I’ll make to the position.
At the pro level, I believe there is a certain standard that must be met or you’re putting yourself at a disadvantage. There are still a lot of poor bike positions in the pro ranks and in my opinion, almost any excuse you can come up with as to why your position is unique is unacceptable with the resources that are available.
If you add it all together, a bunch of small things equal one big thing. Almost every part of a bicycle can be optimized to move more efficiently by reducing aerodynamic drag, drivetrain friction, and rolling resistance.
Typically, the bike frame is the first thing we think about. However, there are other lower cost methods to consider before upgrading your bike frame. Tires, tubes, wheels, cable routing, clothing, helmet, drivetrain maintenance, bearings, and most importantly...nutrition and tool storage.
Long course triathlon can be a logistical nightmare. We need to carry “stuff” on our bikes. There are well thought out strategies that have minimal impact on aero drag and there are substandard methods that can turn your aero machine into a lunchbox on wheels.
I’m also willing to make a few compromises with what I’d determine optimal setups to accommodate what is practical. For example, If an athlete prefers to place both drink bottles on the frame. I don’t believe it’s the fastest bottle setup, but it’s faster than drinking less because they can’t comfortably access their nutrition.
Equipment selection and optimization can get tricky when working with professional athletes. There are a lot of companies that make high performing products and I prefer to focus on forming relationships with them. I’m admittedly difficult for athlete managers that are not of the same mindset. An athlete needs to consider if using an inferior product will cost you more money in the long run than if you had passed on the deal? Not all athletes are in a position to turn down any deal, but it’s something to consider.
I’ve been happy with the choices that both Liz and Callum have made with their setups and sponsorship choices. There are a few minor tweaks I’d like to make, but at the end of the day, they are not breaking any major rules.
In the end, all of this comes down to desire, goals, and budget. If you’re just out there racing to have fun and stay in shape, I’m not going to criticize you for not wearing an aero helmet. However, if you dedicate a lot of time to improve your ability to move forward at a faster pace, it’s crucial to your performance to minimize those forces that are working against you.
I was able to use this display this on the biggest stage in triathlon in 2011. I was working with Craig Alexander who lost the 2010 race on the bike. Craig had always relied on his hard work and superior fitness to win the two previous years. However, for a competitor like Craig, failure forces change. He was all in when it came to optimizing his bike position and equipment. He would train harder than ever, but wanted to make sure he was getting the most speed out of his effort. In 2011, Craig showed up with a new attitude and had his equipment and bike position dialed. The result was his 3rd Kona title in which he broke the course record, distancing himself from most of his competitors on the bike. He didn’t ride at a higher output, he just went faster for that output.
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by Mat Steinmetz
Where did crank length come from? Where did these lengths that we consider “standard” originate? Has crank length just been passed down from one generation to another and over time has just become accepted even though there is no basis for the current “standard” with the current bicycles we ride today.
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