Your best fit depends on what you're trying to do
Endurance, racing, commuting and aero goals select different mechanical reference bands. There is no single correct position.
Published 20 June 2026 · Updated 8 July 2026 · OpenBikeFit
Start from your use case
Build a goal-aware baseline
Connect body measurements, mobility and riding goal without hiding the source of each range.
Open toolA commuter choosing an upright reference, a randonneur recording an endurance setup and a time-trialist comparing drag-oriented coordinates do not share one mechanical target.
That's why OpenBikeFit asks for discipline and goal up front and uses explicit optimization modes. The default uses the most upright reference band; performance and aero modes disclose how their coordinates differ.
Changing the declared goal changes the reference band. That is a transparent input effect, not proof that one result is ideal.