Ep. 15 Sponsor: G8 2620 Orthotic Insoles

G8 Performance 2620 Orthotic Insoles provide increased blood flow, better proprioceptive response, foot rehabilitation which all lead to more comfort, power and efficiency during your run or ride.  G8 2620s are the only insole that offers multiple arch heights and custom arch position for each foot.

Pelvic Stability, Saddle Choice and Funtional Movement

Pelvic stability is integral to power transfer.  Seasoned professional and functional movement specialist Greg Choat has been involved in racing for 40 years, coaching for 30 and fitting for 20.  He extensively discusses how pelvic stability impacts our fit, the comfort of your saddle and how your efficiency and power transfer.  He’s traversed the arduous path of injury recovery which sidelined him for a period from cycling.  His winding road back to health inspired a relentless hunger for knowledge of body functionality and bike fitting.  Greg also is an expert on saddles and he talks about not only his view on the world of bike fitting but why it’s so incredibly difficult to navigate the saddle selection market.

THE DIVE: Ep. 15 Topics

Establishing Pelvic Stability

  • The journey to become a fitter
  • The fundamentals of human movement
  • The difference between barstools and bike saddles
  • The cycling industry failure–basing saddle comfort of the sit bones
  • “The saddle will not create stability alone.”
  • “My goal is to make the pelvis as stable as possible–to make that a platform and then look for the areas and potions we can function most optimally off the pelvis.”
  • Position in the pro peloton
  • “Put Fabien Cancellara on 500 dollar Huffy in a bad position and he’s still going to beat everybody.  That’s the nature of a lot of professionals. They are outliers. That doesn’t mean their position is wrong–it clearly works for them.”
  • Being task-driven is the mechanism of injury
  • Describing the workflow of establishing pelvic stability through fit
  • “The space between the contact points is where asymmetry manifests itself.”
The Challenge of Bike Fitters 

  • The bike fitting community’s problem is that we haven’t done a good job at communicating the nuances and the details of how complex fitting someone on a bike is to our consumers”
  • Fitting is not a one and done deal
  • Bike fitters are more like tour guides
  • Fitting is an exploration
  • Longitudinal data in an efficiency sport is more valuable than a snapshot
  • A “real fit” would encompass multiple indoor and outdoor sessions
Saddle Selection

  • Saddles have the largest variation among all bicycle components
  • How the shape and dimensions of saddles affect fit
  • Ischial tuberosity doesn’t help you select the saddle
  • Gender specificity in saddle selection
  • Flexibility in regards to the pelvic position vs. actual flexibility
  • Off-the-bike assessment as part of saddle selection
  • Treating symptoms does not always solve the issue
  • The saddle is not necessarily the problem.  Discomfort may stem from their position or function.
  • “It’s not about the bike, it’s about the person.”
  • “Your function dictates your form.”
 If you’re put force down to the pedal and you can have the biggest quads in the cycling community, if your pelvis is not stable when you put force down into the pedal with your big strong legs, your pelvis is just going to rock out of the way and that’s a power leak–an instability and there’s a total shift up the kinetic chain when that happens.
Greg Choat

Sanus Sport Science

Greg Choat Bio:

Greg’s passion for bike fitting grew from his own misfortune. Unable to ride a bike, walk or run following a back injury he sought out professionals to help address his issues. The answers he sought could not be found in the bike industry at the time so he looked to the wider health community.

His journey took him both eastern and western medical professionals, neurologists, kinesiologists, phycologists, chiropractors, physiotherapists, and some who’s practice could not traditionally be described.

After 14 months of inactivity, he returned to competition with a new appreciation of the human body and the many ways it can function.

Greg is a Cat 1 USA Cycling Coach and Certified Skills Instructor, Functional Movement Specialist II, RKC HKC kettlebell Instructor & Precision Nutrition Master Coach. With over 20 years of fitting experience and 30 years coaching and continuing learning he is a journeyman in the world of human movement and sports performance.
Contact Information:
Web: https://sanussports.com/bike-fit
Facebook: lasvegasbikefit
Instagram: sanussportsusa
Twitter: @bestbikefit


  1. Paul Swift

    Loved it. I think BikeFit might need to have you on more often. Just wondering with all the pelvis and saddle chat what is your favorite or perhaps I should say most often recommended saddle and do you change a lot of saddles (do a lot of saddle changes in a session)?

  2. Greg

    Hey Arland. Thanks for tuning in. The reference point I use for saddles is 75mm sagittal width. I know some saddle manufactures have used this previously too but there’s another discussion based around that. The research can debate anatomical variations but if you looking for a datum that’s a good one to use.
    I measure everything in X/Y, but you could use X and the hypotenuse and you’ll get the same position if you don’t have X/Y capabilities. I reference every component positional measurement from the BB.
    Hope that answered your question.

  3. Arland Macasieb

    Hi Greg, great show! What was the reference point you used to compare different saddles? I remember you posted about it a while back. Also is that the reference point you use to measure to the bottom bracket for saddle height?

Pin It on Pinterest