Our Team

We have assembled a team who deliver the highest level of knowledge and expertise in their fitness modality. As athletes and coaches we firmly believe that a comprehensive approach, consistently integrating stability, mobility and regeneration in to training, to complement endurance-specific workouts, is the silver bullet to injury prevention and improved performance.

dai endurance mike


Michael Sayers

Michael Sayers most recently worked for USA Cycling, cultivating the next generation of American riders. He served as the U.S. Olympic Team Men’s Coach at the 2012 London Games and the 2016 Summer Games in Rio de Janeiro. He has led Team USA at the last 9 World Championships for both the U23 Men and the Elite Men. He was part of the BMC Racing Team as the only American Sports Director. Before that, he led teams that raced in America and Europe for 13 years. He rode for Comptel-Colorado Cyclist, Mercury Pro Cycling Team, and Health Net before concluding his career on the BMC Racing Team. Sayers was with the BMC team from its inception as a Continental team to Pro Continental to World Tour team.

Once he stopped riding professionally, Sayers served as the assistant director of global cycling operations for BMC. In his role with the BMC Racing Team, Sayers contributed to Cadel Evans’ winning the 2011 Tour de France, and the development of young American stars like Taylor Phinney and Neilson Powless. He served as the team director for the men’s road team at the 2012 Olympic Games in London, where Phinney placed fourth in both the road race and the time trial.


Julie Cross


Julie Young

Through her extensive race career at the elite international level, Julie brings firsthand knowledge of science-based, individualized training programs combined with nutrition, mental conditioning and race tactics produce winning results. Julie is considered one of America’s most dominant European stage racers of her era. She is currently pursuing her Masters degree in Sports Science.

  • 12-year US and World Tour Pro Cyclist for Kahlua, Saturn, Timex, Autotrader, & Team Fannini
  • US National A-Team Cyclist
  • 6-time UCI Road World Championship Team Cyclist

  • Tour de L’Aude (women’s equivalent to Le Tour de France) General Classification Victory
  • Multiple winner Xterra Lake Tahoe and Tahoe City
  • Winner, 50k Trail National Championships
  • Winner, US Amateur Mountain Bike Cross-Country and Marathon National Championships

Her expertise gained while working with the sport’s most prominent physiologists and coaches including Chris Carmichael, Mirek Mazur, Harvey Nitz and Dr. Massimo Testa gave her a solid background in a variety of training methodologies.
As one client shared “I’m achieving things that I’ve never done before. Julie helps me see my potential.”
Julie is uniquely poised to help you tap your full potential:

  • Co-founder of DAI! Endurance
  • Co-founder of the Bike Like A Girl, non-profit, getting more girls on bikes
  • Kaiser Permanente Sports Medicine Endurance Lab Consultant
  • 7-year Director at Silver Sage Sports and Fitness Lab
  • 11-year Founder/Head Coach at O2fitness Coaching and Training

Coaching Specialties:

  • Cycling (road, mountain and cyclo-cross)
  • Road and Trail Running
  • Road and Off-Road Triathlon
  • Injury Prevention
  • Return to Sport

Biomechanical Services

  • SIMI Motion Capture bike fitting
  • SIMI Motion Capture gait analysis


  • Exos (formerly Athletes’ Performance) Performance Training Mentorship
  • Specialized Body Geometry Bike Fit Certified Technician
  • Medicine of Cycling, Bike Fitting Certification.
  • Six month fellowship – Advanced Functional Biomechanics of the Lower Quarter: Integration of Technology into Practice, USC – Movement Performance Institute



Cycling Performance Coach

Tyler Williams

I have been racing at an international level for 8 years following the USA Cycling development pathway from 16-22 as well and being part of the top development cycling teams in the world during that period.  I have spent the past 2 year with the Pro Continental team Israel Cycling Academy Team, racing the biggest races in the world. Currently I am living in Santa Rosa, CA and Girona, Spain. My schedule has consisted of a handful of UCI World Tour races, UCI Europe Tour, UCI Asia Tour and Tour of Utah, Tour of Colorado here in the USA.  One of the benefits of being fortunate enough to be in these prestigious programs is I have been surrounded and taught by many of the brightest minds in cycling. Whilst also carving my own path through the sport and gaining my own ideas of how to best do things.


One of the most important conclusions I have come to in my experiences is that there is not one or even a couple of ways that are guaranteed to work for you.  Every person is unique with there own athletic ability and also psychological ability for what they can or cannot handle. My goal as a coach would be to first make sure that athletes feel valued and listened to.  This is something I have found has great influence on athlete to coach trust and relationship. Equally important to this is achieving the milestones that in my opinion is why people ride bikes. It is a challenge and the people who enjoy this sport enjoy setting goals and achieving them.  So setting goals and helping athletes achieve them is a key role for a coach.


I want to provide programs for every cyclist that is driven to improve themselves.  From helping beginner or intermediate racers to people trying to follow the same path i did. .  I want to provide a program and partnership to get them pointed in the direction so they can exceed those goals and also not lose the most important thing which is the beauty of riding a bike.  

2nd Paris Roubaix Espoirs (2014)

1st TTT Stage 1, Olympias Tour (2016)

5th GC Tour of Taihu Lake (2018)

7th Stage 1 TT Tour of Taihu Lake (2018)

3rd Stage 2 Tour of Alberta (2016)

8th Stage 4 TT Tour of Alberta (2016)

11th GC Tour of Alberta (2016)

8th GC GP Liberty Seguros (2016)

13th GP Cerami (2016)

12th Tour de L’avenir TT (2015)

3rd USA U23 Nt. Champs. RR (2016)

4th USA U23 Nt. Champs. TT (2014)

8th Tour of Korea Stage 2 (2018)

9th Tour of Japan TT (2018)

KOM Tour de la Province de Namur (2014)

USA World Championship Team Member u23 (2014,2016)



Small Group Fitness Instructor

Domenic D'Acquisto

More info soon...


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