Privacy Policy

Last updated: 2026-05-03

Introduction

This privacy policy explains how bike-gear-ratio-visualizer.hub2.day handles information when you visit or interact with the site. The site is a focused web utility that helps cyclists and mechanics visualize gear ratios, speed-at-cadence data, and drivetrain comparisons directly in the browser.

Information We Collect

Browser-Local Inputs

All chainring, cassette, wheel size, and crank length values you enter are processed locally in your browser. These inputs are not transmitted to our servers unless you explicitly use a feature that requires server communication (for example, sharing a saved setup via a generated link). Where possible, project data is stored only in your browser's local storage so you can return to it later.

Contact Email

If you contact us at hello@bike-gear-ratio-visualizer.hub2.day, we collect the email address you provide and the content of your message solely to respond to your inquiry. We do not add contact emails to marketing lists or share them with third parties for their own purposes.

Server and Security Logs

Our hosting provider may automatically log limited technical information such as IP addresses, request timestamps, requested URLs, and user-agent strings. These logs are used for security, abuse prevention, and basic operational monitoring. They are not used to build individual profiles.

Cookies and Local Storage

The site may use browser cookies or local storage for:

• Remembering your preferences (such as default units or theme)
• Storing project inputs locally so you can revisit them
• Advertising and analytics purposes described below

You can clear local storage and cookies at any time through your browser settings. Doing so may reset preferences and locally saved projects.

Advertising

This site uses Google AdSense to display advertisements. Google AdSense may use cookies and similar technologies to serve ads based on your prior visits to this site or other sites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the internet.

You may opt out of personalized advertising by visiting Google Ads Settings or by using industry opt-out tools such as aboutads.info.

GDPR / EEA / UK Consent

If you are located in the European Economic Area or the United Kingdom, we rely on your consent before setting non-essential cookies (including advertising cookies). Where a cookie consent mechanism is presented, you may accept or reject non-essential cookies. Essential cookies required for basic site functionality do not require consent.

Under the GDPR and UK GDPR, you have the right to access, rectify, erase, restrict processing of, or port your personal data, and to withdraw consent at any time. To exercise these rights, contact us at hello@bike-gear-ratio-visualizer.hub2.day.

CCPA / CPRA Rights

If you are a California resident, the California Consumer Privacy Act (as amended by the CPRA) may give you the right to:

• Know what personal information is collected and how it is used
• Request deletion of personal information
• Opt out of the sale or sharing of personal information
• Non-discrimination for exercising your rights

To submit a request, email hello@bike-gear-ratio-visualizer.hub2.day. We will verify your request before responding.

Service Providers

We use third-party service providers for hosting, analytics, and advertising. These providers may process limited data on our behalf under contractual obligations consistent with this policy. Key providers include:

• Google AdSense (advertising)
• Hosting and CDN providers (site delivery and security)

We do not sell personal information to third parties.

Data Retention

Server and security logs are retained only as long as necessary for operational and security purposes, typically no longer than 90 days. Contact emails are retained only as long as needed to resolve your inquiry. Browser-local data persists until you clear it.

Children

This site is not directed at children under 13 (or the applicable age of consent in your jurisdiction). We do not knowingly collect personal information from children.

Security

We implement reasonable technical and organizational measures to protect information in our control. No method of electronic storage or transmission is completely secure, and we cannot guarantee absolute security.

Third-Party Links

The site may contain links to external websites. We are not responsible for the privacy practices or content of those sites. We encourage you to review their privacy policies.

International Processing

Information collected may be processed in countries other than your country of residence, including the United States. By using the site, you acknowledge this transfer.

Changes to This Policy

We may update this policy from time to time. The "Last updated" date at the top will be revised when changes are made. Continued use of the site after changes constitutes acceptance of the updated policy.

Contact

If you have questions about this privacy policy or wish to exercise your rights, contact us at hello@bike-gear-ratio-visualizer.hub2.day.