Drivetrain efficiency advisor

Stop guessing
your gearing

Connect Strava. We analyze your cadence, speed, and power to recommend the chainring and cassette that actually match how you ride.

How it works

Link your Strava account. We only read your ride data.

Pick a bike, choose a time range. We crunch cadence, speed, power, and gradient.

Ranked gear recommendations scored by chainline efficiency, cadence match, and cog spacing.

Recommendations derived from your actual riding patterns. Based on what your body and terrain actually demand, not generic advice.

Every setup scored for cross-chain efficiency. See how much time you'd spend in good chainline versus fighting friction at the extremes.

Every recommendation maps to a Shimano or SRAM groupset you can walk into a shop and buy. 11, 12, or 13 speed. 1x or 2x.

Score your current setup against the data. Find out if that 53T chainring is earning its keep, or if a compact would serve you better.