Train Smarter

with the Science of Results

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Goal Oriented

with Clear Communication

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Data Driven

Individualized Training

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Coaching & Nutrition Services

As part of the Source Endurance family, the focus is on you. Our highly educated endurance coaches have extensive experience in road cycling, mountain biking, cyclocross, gravel, time trials, track, multisport, XC ski, Zwift (virtual racing), and more. In addition, our in-house RDN expands our professional services and enhances the wealth of knowledge we leverage to maximize your coaching relationship and provide you with the tools to reach your goals.

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Camps & Clinics

Being at a Source Endurance cycling camp is like being a professional, but without all the pressure or hype. Enjoy learning from professional coaches and athletes in a comfortable, adventurous setting. We offer gravel, road, cyclocross and criterium camps.

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From The Coaching Chronicles


Sports’ secret weapon: sleep. By: Michael J. Breus, PhD

By Adam Mills | December 3, 2012

The search for performance enhancement leads some athletes to turn some pretty dark corners. It’s a shame, and not just because doping is dangerous, unethical, and frequently illegal. It’s also a shame because athletes at all levels of play have access to a powerful tool to improve their performance, one that won’t break any laws…

Crank length, What’s Your Size?

By Zack Allison | November 14, 2012

What length is your road crank? If you are less than 5 feet tall you are likely running 165mm cranks. If your height is 5’5” – 6 feet you are likely spinning 172.5mm cranks. Over 6 feet and the length “standards start to vary.” 175mm? 180? Custom length specially made? What actually makes these the…

Pedaling Efficiency at Low vs High intensity

By Zack Allison | August 28, 2012

Many things go into a pedal stroke. Consider that the daily commuter just pushes down on his flat pedals, making one dimension of force. As this commuter pedals harder to make the red light, his RPMs increase and he starts to bounce on the saddle and inefficiently gain speed to make the light. On the…

"My work/life balance has not always allowed me to train/race or even ride as much as I would like. I appreciate my coach for his willingness to adapt to my challenging schedule so that I am able to enjoy my limited time on the bike without feeling guilty or frustrated for having a lack of fitness. Adam and Source Endurance have been a great partner for the past 10 years both on and off the bike!" 

- Patrick Robinson

“My season goal was to finish DK200.  Goal crushed.  I can’t say enough how well the plan leading up to Dirty Kanza worked out.  Perfect on so many levels, I was beyond ready mentally and physically, evidence by beating my DK goal by almost 2hrs.  BWR challenged me technically, but the rest was a piece of cake in terms of my readiness for the duration and heat.”

– Sonja Johnson

“I’ve loved working with Grant and Source Endurance so far, really happy wtih the results I’ve been seeing this cross season!”

– Alex Edwards

“Just wanted to say the year is turning out okay despite rocky winter. Steady build has me seeing power numbers as high as I’ve seen in a decade. Now onward to DK 200. Thanks for the guidance!”

-Trey Harrison

“Basically just writing to say a big thank you.  I truly don’t think my performance would be where I’m at without the training regimen you provided. During those primes and sprints I felt unstoppable.  I was calculated, composed and even more importantly, coached, on exactly what I needed to do.”

-Chris Lowry- La Crosse, Wisconsin