Gear Analysis Tool

Upload a FIT file and provide chainring/cassette details to analyze your ride gear usage.

Input Instructions

Upload .FIT file: Download it from your cycling computer software or Trainingpeaks, Strava platform. (Works from browser only). Downloaded file from Trainingpeaks needs to be unzipped.
Big Chainring: Big chainring size.
Small Chainring: Small chainring size.
Cassette: Choose from the list.
Min Power: If you want to have data only where power is higher than 100 watts, use 100 as value.
Min Cadence: If you want to have data only where cadence is higher than 20 rpm, use 20 as value.

Upload FIT File

Choose File

Big Chainring (e.g. 53)

Small Chainring (e.g. 39)

Cassette(*Tested only with 12-speed cassettes)

Min Power (optional, default 0)

Min Cadence (optional, default 0)

Your gear usage summary will appear here after analysis.

Gears are grouped into zones based on their alignment and efficiency:

Red Zone: Extreme cross-chaining positions (worst efficiency).
Orange Zone: Near extremes of the cassette. Acceptable but not ideal.
Green Zone: Middle gears with good chain alignment. Most efficient for drivetrain performance.