John Karrasch
Performance Coach & Bike Fitter
John brings a rare combination of expertise to coaching: over 20 years of racing across multiple disciplines, nearly two decades as a professional bike mechanic, and extensive experience in physical therapy. His FlexFit bike fitting service has helped hundreds of athletes find their optimal position. As a coach, he combines this technical knowledge with proven training methods to help athletes of all levels reach their potential.
Work with JohnRacing Experience
- 20 years of racing experience
- Cyclocross to 24-hour solo events
- Multiple discipline competitor
Professional Expertise
- Pro bike mechanic since 2005
- Expert bike fitter since 2013 (FlexFit)
- 11 years experience in outpatient physical therapy
FlexFit Bike Fitting
John's FlexFit bike fitting service combines his extensive background in physical therapy with years of professional bike mechanic experience. Get dialed in for optimal performance and comfort.
Book a Fitting SessionCoaching Philosophy
"The body is a system, and so is your bike. My background in physical therapy and bike fitting gives me a unique perspective on how to optimize both. I help athletes not just ride faster, but ride smarter—with better position, better movement patterns, and fewer injuries."
What Athletes Say
"Placeholder testimonial about working with John. His bike fitting expertise completely changed my riding."
Athlete Name
Race/Event
"Another placeholder testimonial highlighting John's unique combination of PT and coaching knowledge."
Athlete Name
Race/Event
Ready to Work with John?
Fill out our athlete survey and John will be in touch within 48 hours.
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