Bike Fit Methodology, with Dr. Andy Pruitt, Colby Pearce, and Todd Carver

Three great minds of bike fit share their bike fitting methods, the role of technology, and other practical considerations.

Todd Carver conducts bike fit
Todd Carver conducts a bike fit on a Bora-Hansgrohe professional rider. Photo: Courtesy Retül

In the beginning, a bike fit would include a guy at a bike shop with a plumb line and a theory. Now, bike fit is a full-fledged science with video cameras, 3D models, and a greater understanding of human anatomy and physiology as it pertains to cycling.

Once again, we’re joined by three of the great minds in bike fit.

Dr. Andy Pruitt is the director of sports medicine here at Fast Talk, and one of the pioneers of the study of cycling biomechanics.

Our next guest has appeared on Fast Talk many times before, and he also continues to host his own podcast, “Cycling in Alignment.” Of course, I speak of Colby Pearce.

Finally, continuing his Fast Talk debut is Todd Carver, co-founder of Retül and the head of human performance at Specialized, which now owns the Retül fit technology.

In part 2 of our bike fit discussion with Pruitt, Carver, and Pearce, we explore:

  • the practical implications of bike fit
  • the debate over aerodynamics versus power
  • our experts’ feelings about technology versus experience and intuition
  • and many other subjects, generally in the realm of “bike fit methodology.”


  • Beer, J. (n.d.). Cycling Equipment: The effect of aerodynamic and drag on cycling performance. Retrieved April 22, 2016, from
  • García-López, J, Ogueta-Alday, A., Larrazabal, J., & Rodríguez-Marroyo, J. (2013). The Use of Velodrome Tests to Evaluate Aerodynamic Drag in Professional Cyclists. International Journal of Sports Medicine, 35(05), 451–455. Retrieved from
  • García-López, Juan, Rodríguez-Marroyo, J. A., Juneau, C.-E., Peleteiro, J., Martínez, A. C., & Villa, J. G. (2008). Reference values and improvement of aerodynamic drag in professional cyclists. Journal of Sports Sciences, 26(3), 277–286. Retrieved from
  • Heil, D. P. (2005). Body size as a determinant of the 1-h cycling record at sea level and altitude. European Journal of Applied Physiology, 93(5–6), 547–554. Retrieved from
  • Jeukendrup, A. E., & Martin, J. (2001). Improving Cycling Performance. Sports Medicine, 31(7), 559–569. Retrieved from
  • Martin, J. C., Milliken, D. L., Cobb, J. E., McFadden, K. L., & Coggan, A. R. (1998). Validation of a Mathematical Model for Road Cycling Power. Journal of Applied Biomechanics, 14(3), 276–291. Retrieved from
  • Rose, T. (2016, January 16). When U.S. air force discovered the flaw of averages. The Toronto Star. Retrieved from

Episode Transcript

This content is for Listener, Library, and Coaching Essentials members only.
Listener Membership is FREE. Please join now.
Log In Join Now

Related Episodes