Precision Fitting Rooted in Experience

I’m Cesar Correa, the founder of Cassette Fit Studio. My journey in bike fitting began back in 2013 at 3DBikeFit in San Francisco, where I spent over a decade helping riders of all levels unlock more comfort, power, and efficiency on the bike. Now, with Cassette Fit Studio, I bring that same depth of experience and attention to detail into a more personal, rider-first space.

At Cassette, fitting isn’t about making your body fit the bike—it’s about tuning the bike to your body, your goals, and how you ride. Whether you’re a seasoned racer, a gravel grinder, or just getting into cycling, your fit should feel natural, powerful, and pain free.

Using a combination of motion capture, physical assessment, and years of hands-on insight and experience, I guide you through a fitting process that’s both technical and intuitive. You’ll not only see what’s happening, but feel the difference as we dial in your setup.

More than a Fit — It’s a Ride Changer

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Cassette Fit Studio isn’t tied to any one brand or system. My only goal is to get you riding better. I’ve worked with thousands of riders and countless bike geometries—what matters most is what works for you.

Whether you’re here to fine-tune an existing setup, solve nagging pain, or get sized for a new build, you’ll leave with a deeper understanding of your position and your ride.