Skip to content
The Gear SportsCycling

Home / Tools

Interactive

Tools.

A small tool for a question riders ask when comparing gears: how far does one turn of the cranks take the bike.

Each tool explains how it works below it and shows the arithmetic it uses. They are aids for comparing gears, not rulings: a race's own rules and its officials have the final word.

01

Gear Calculator

Enter a chainring, a list of sprockets and a tyre size to compare every gear's ratio and development.

Disclosure The Gear Sports Cycling is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. As an Amazon Associate we earn from qualifying purchases. Our recommendations are independent.