About Spinkind
Spinkind is an independent collection of four practical browser-based tools. No accounts or uploads.
Compare gearing, cadence and measured wheel rollout with simple transparent calculations.
Spinkind brings four related tasks into one small, focused toolkit. It is independently built and is not affiliated with any supplier, event, sports federation or hosting company.
Both languages use the same logic. Every tool includes a practical example, usage limits and export options so you can review a result before using it.
No account is required. Your work stays on your device. Start with the example, edit your own content and export a copy when you are ready.
Back to the toolkit →