VeloPSI is a free bicycle tire pressure calculator. We are committed to being transparent about the limited data we collect and how we use it.
VeloPSI uses Google Analytics 4 to understand how the tool is used so we can improve it. If you accept analytics cookies, Google Analytics may collect:
We do not collect your name, email address, or any personally identifying information. IP addresses are anonymized before being processed by Google Analytics.
VeloPSI uses the following browser storage:
velopsi_profiles — stores your saved bike profiles on your device only. Never transmitted anywhere.velopsi_ga_consent — remembers your cookie preference (accepted or declined).If you decline analytics cookies, no Google Analytics data is collected or transmitted. Your preference is saved locally.
You can opt out of Google Analytics at any time by:
We do not sell, rent, or share your data with any third parties for marketing purposes. Analytics data is processed by Google under their standard terms. We do not use any advertising networks or remarketing services.
Google Analytics data is retained for 14 months (Google's default). Bike profiles stored in your browser's localStorage remain until you delete them within the app or clear your browser data.
VeloPSI is not directed at children under 13. We do not knowingly collect any information from children.
If we make material changes to this privacy policy, we will update the "Last updated" date above. Continued use of VeloPSI after changes constitutes acceptance of the updated policy.
Tire pressure recommendations provided by VeloPSI are for informational purposes only and represent starting points based on empirical models. Always verify your tire's maximum pressure rating printed on the sidewall and your rim manufacturer's specifications before inflating. Riding conditions, rider skill, equipment quality, and terrain vary significantly. The rider is solely responsible for all decisions made regarding tire pressure. VeloPSI and its authors accept no liability for any injury, equipment damage, or loss resulting from use of these recommendations.
For privacy questions or requests:
For general feedback about the calculator: