Change one thing. Learn from every ride.

A company-owned product—not a founder-led fitting practice.

Roth Bike Fit is operated by Mountain Brook Run LLC through the Roth Cycling Labs product organization. The company owns the product experience, customer support, privacy program, release decisions, corrections, and the claims published on this website.

Roth does not use a founder biography, personal headshot, or personality story as a substitute for product evidence. Questions about the company or service go to hello@rothbikefit.com.

• Legal operator: Mountain Brook Run LLC
• Product organization: Roth Cycling Labs
• Customer support: hello@rothbikefit.com
• Product, privacy, and correction responsibility stay with the company

Make online bike fitting easier to trust.

Online fitting makes useful guidance easier to reach, but one camera angle should never pretend to tell the whole story. Roth shows what was noticed, how certain the result is, where it may fall short, and how to return to your starting setup.

One change is easier to understand and evaluate.

Roth checks each recording, compares two videos of the same setup, explains one suggested change, respects your bike’s limits, and follows what happens on your rides. Instead of handing you a long list of adjustments, Roth starts with one change you can undo.

• Place the phone correctly before recording
• Compare two recordings of the same setup
• Explain why one change comes first
• Save your starting setup
• Check the result indoors and on real rides

A product earns trust by showing where it stops.

Roth will not use made-up testimonials, invented success rates, medical claims, or unsupported comparisons. What the product can and cannot do, how long information is kept, and any corrections should be as easy to find as pricing.

Public account access remains closed during release testing.

Founding-rider enrollment requests are open, but public Apple, Google, and email accounts are not enabled in this release. Account access will appear only after production provisioning, recovery, deletion, and website-to-app continuity pass their release checks.

An enrollment request does not charge a card, guarantee beta eligibility, or unlock an unsupported fitting path.