Frequently Asked Questions

BestBikeFit4U uses established biomechanical formulas, including LeMond/Hamley for saddle height and KOPS-based logic for setback. For most riders, results are close to what a professional fitter would recommend. Adding optional measurements improves accuracy further.

You need two required measurements: your height and inseam length. For improved accuracy, we also accept optional measurements including torso length, arm length, and shoulder width. See our measurement guide for detailed instructions.

You need a tape measure and a flat wall. For the inseam measurement, a hardcover book is helpful. All measurements can be taken at home.

We support road bikes, gravel bikes, mountain bikes, time trial or triathlon bikes, city or commuter bikes, and touring bikes. Each bike type uses category-specific fitting logic.

Yes. During the campaign you can still manage multiple bikes once you have created your account.

Your flexibility score adjusts bar drop, saddle height, and reach. Riders with limited flexibility get a more upright position with less bar drop, while flexible riders can sustain more aggressive positions.

During the fit questionnaire, you can report the discomfort areas that matter most to you. BestBikeFit4U uses that context to help you review fit-related setup factors first, but persistent or severe pain may still require an in-person fitter or medical assessment.

Your fit report includes saddle height, saddle setback, handlebar drop, reach, stem length and angle, crank length, handlebar width, frame size recommendation, and a prioritized adjustment guide.

Yes, you can email your fit report directly from the results page.

Yes. During the campaign you can use your full report without a required payment.

No. There is currently no public money-back guarantee claim on BestBikeFit4U.

Yes, you can upgrade or downgrade your plan from account settings.