About

Fit Kit Systems provides education, tools, and software for use in bike sizing and bike fitting.

Fit Kit Systems has developed equipment, software and fitting protocols which have found their way into thousands of bicycle retailers and fitting studios around the world.  Our tools and protocols have been improved and refined over time, and our bike fitting education emphasizes foundational principles and practices through direct measurement, observation and assessment.

The business commenced in the early 1980’s and was the first company in the USA to focus on bike fitting. Fit Kit Systems predates Bikefit Systems (now owned by QBP), SICI, FIST, BG Fit (Specialized), Trek Precision Fit, and Retul.

Fit Kit Systems remains a small independently owned and run business and has no affiliation with any bike brand, venture fund, or conglomerate.

Bill Farrell was the founder of Fit Kit Systems.  To bring a systematic approach to bike sizing and fitting he gathered empirical data from thousands of cyclists.  What works for real people on real bikes is the basis of our approach, not algorithms.

Our focus is on simple, affordable, and effective.  Our clients include custom frame builders, independent bike fitters, small local retailers, regional and national retail chains, online retailers, cycling coaches and physical therapists.

In addition to the Fit Kit tools, our online store offers a selection of other popular bike fitting tools and supplies, and our education is moving online to improve access for people around the world.

As well as supplying bike fitters and retailers, Fit Kit Systems offers an increasing catalog of “do it yourself” accessories and components for cyclists, as well as a selection of items on the retail wall of our brick and mortar bike fitting studio, BikeFitr.

For more about the origins, early history and recent past of Fit Kit Systems, go here.