CadencePulse turns chainrings and cogs into plain numbers: meters per pedal turn, speed at any cadence, gear inches and gain ratio. Try the bench below.
Speed in km/h for the selected chainring across every cog. Highlighted row is your cog, outlined cell is your cadence.
Meters rolled per crank revolution for any ring and cog pair, with road, gravel and MTB tire sizes.
A full grid of cadence versus speed for every gear, so you can see where each cog really lands.
Compare setups on climbs with crank-aware gain ratio instead of guessing from tooth counts.
Save bikes, chainrings, cassettes and wheel sets on the device and switch between builds in a tap.
No GPS, no permission prompts, no accounts. It works in a workshop basement as well as on a summit.
Every tool is available from the first launch. Nothing is locked behind a paywall.
🚴 We are a small crew of riders and tinkerers who got tired of gearing spreadsheets and ad-stuffed calculators. CadencePulse grew out of grease-stained notebooks and long garage evenings.
🎯 Our mission is simple: make drivetrain math clear, fast and honest, so every rider can choose gears with confidence rather than folklore.
⚙️ You get development, speed at any cadence, gear inches and gain ratio in one calm screen, plus a garage that remembers your bikes and components without ever leaving your phone.
🏔️ The value is freedom: pick the right cassette before the big climb, compare builds before you buy, and keep your data entirely yours.
Know your ratio. Ride your rhythm.
Effective Date: October 2026
CadencePulse: Gear Ratio Lab is built to work entirely on your device. We do not collect, store or transmit your data, and this policy explains what that means in practice.
None. The app does not ask for your name, email, location or any other personal details. It requires no permissions and never uses GPS.
Because we hold no information about you, we do not use it, analyze it or sell it. Values you type, such as tooth counts or wheel sizes, are used only to calculate results on your screen.
Saved bikes, chainrings, cassettes and component configurations live only in local storage on your device. There is no cloud, no server and no backup service operated by us.
The app contains no analytics, advertising networks, social plug-ins or trackers. No third party receives anything from it.
Since nothing leaves your device, your configurations are protected by your device's own security, such as its passcode and encryption. We recommend keeping your operating system up to date.
The app collects no personal information from anyone, including children under 13, which keeps it in line with the spirit of COPPA. It is safe for young riders to use.
You are in full control. There are no accounts to manage. To delete all saved data, simply delete the app from your device.
If we update this policy, the new version will appear here with a revised effective date. Our commitment to collecting nothing will not change quietly.
Questions about privacy are welcome at privacy@cadencepulsegearratiolabapp.com.
👋 Whether you found a quirky ratio, need a hand or have a big idea, we would love to hear from you. Drop us a line any time.
hello@cadencepulsegearratiolabapp.com
Technical supporthelpdesk@cadencepulsegearratiolabapp.com
Business & partnershipspartners@cadencepulsegearratiolabapp.com
⏱️ We reply to every message within 24–48 hours.