PRIVACY · CURRENT RELEASE

A local calculation.
Optional exports.

Gearroll processes entered circumference, tooth counts and cadence in your browser.

Calculator entries

The application does not transmit these inputs or results to a server, analytics event or browser-storage record. No account, location, cycling file or upload is requested. Refreshing restores the example. Copy uses the clipboard when chosen; Text and CSV create local downloads when chosen.

Website delivery

Cloudflare Pages serves this static website. Hosting and security can involve technical request data including IP address, requested URL, browser details and time under Cloudflare’s policies. Local calculation does not mean a public website visit creates no network records. Read Cloudflare’s privacy policy.

Ads and analytics

This release does not load advertising, third-party analytics or optional tracking scripts. Publisher identification and ads.txt prepare for a possible later host-specific setup. They do not establish active ads, approval, consent coverage, measured visitors or earnings. This notice must be updated to reflect any later actual activation.

Contact email

yardfill.helpful594@aleeas.com is an existing public forwarding alias shared with Yardfill and other portfolio tools. SimpleLogin forwards mail to the operator’s receiving mailbox. Emailing shares sender details, message content and any attachments with those email services. Only include information needed for the enquiry. Read SimpleLogin’s privacy policy.

Your choices

Contact and exports are optional. Use the shared alias for a question about operator-controlled email records. Providers handle their own processing. Notice prepared 18 October 2026.