Bike Gear Ratio Calculator
In the workshopGear inches, speed & compare
Store name: “Bike Gear Ratio Calculator”
What it is
A bicycle drivetrain calculator: set up chainrings, cassette, wheel, and crank, and read gear inches, development, gain ratio, and speed at cadence for every gear on one sorted chart. Then compare two drivetrains side by side with a plain-language verdict.
Why we built it
Cyclists do this math before every cassette swap or 1x conversion, and the beloved reference tool for it is a desktop-era web page. Nothing did the job properly on a phone: all four standard gear numbers, verified cassette presets, honest overlap and duplicate analysis, and a real A-vs-B comparison that answers "what does the 1x actually give up?"
Want one like this?
Bike Gear Ratio Calculator is one of 87. We can build yours.
Every app on the shelf started as one honest problem, scoped small and built native, end to end. That’s exactly how we approach client work — designed, built and shipped, without the bloat.
