Managing multiple bikes per athlete

The primary flag

Every BikeSetup has an is_primary flag. It marks the bike that should be considered the athlete's main race bike. Only one bike should be primary at a time.

• The race planning wizard pulls CdA and Crr from the primary bike by default.
• Race readiness reports check the primary bike's setup.
• The athlete's equipment summary highlights the primary bike.

When to create a second bike

Make a separate BikeSetup row whenever the bike represents a different position or component set that the athlete will use materially. Common cases:

• Race TT / tri bike vs road training bike: very different positions, very different CdA. Two rows.
• Race road bike vs winter road bike: different wheels, tires, sometimes saddles. Two rows if the differences affect a race.
• Outdoor bike vs indoor trainer: trainer bike often has no CdA relevance but its own crank length or saddle.
• Gravel bike for a gravel race: separate row so the gravel race uses the right setup.

When NOT to create a second bike

• Same bike with a different wheel choice for one race: log it as a BikeChangeLog entry, not a new bike row.
• Same bike with a tire pressure change: just update the pressure fields.

Switching primary

To switch which bike is primary:

1. Open the new primary bike's edit page.
2. Toggle is_primary on.
3. Open the previously-primary bike and toggle is_primary off.

The Hub does not yet enforce "only one primary at a time" at the DB level, so do this manually.

Athlete side visibility

Athletes see all their bikes in /my-equipment/ and can distinguish them by name. The primary one is highlighted.

See also: Bike setup overview, BikeChangeLog.