How your coach uses your equipment list

What the list is for

The equipment inventory on /my-equipment/ is not just a record of what you own. It feeds three specific coaching decisions, and missing or wrong entries can produce wrong race plans.

What gets used and how

Bike

The fields on your BikeSetup feed:

• Total weight (kg): input to the Bike Power Plan calculator. Wrong weight = wrong bike split projection.
• Last CdA (m squared): the aero coefficient used in the same calculator. Missing CdA means the bike plan falls back to defaults.
• Last Crr: rolling resistance, same calculator.
• Crank length, saddle height, saddle setback, stack, reach, pad width, pad stack: fit measurements. If your position drifts, comparing past and present values diagnoses what changed.
• Tire pressure (front and rear): what you ran on the most recent race or test, used to compute Crr against course and tire combinations.
• Frame, wheels, tires, groupset, pedals, saddle, helmet: identification for race-day setup checks and for diagnosing equipment-related power or comfort issues.
• Primary flag: which bike is the race bike. The wizard pulls from this one by default.

Swim

Your SwimEquipment records feed:

• Wetsuit / trisuit / swimskin choice: the coach picks the right one per race based on wetsuit legality and conditions. Without a record, they cannot.
• Goggles model: useful for race-day spare planning.

Run

Your RunEquipment records feed:

• Race shoes vs training shoes: the coach knows which shoes you race in (which matters for shoe-mileage planning).
• Insoles: confirms what is in the shoe.

Why it matters even if you mostly train at home

• If you race at all, the bike weight and CdA matter for any goal-time projection.
• Switching bikes mid-season changes everything; a recorded switch lets the coach explain a power or pace shift.
• Equipment problems often masquerade as fitness problems (saddle creep, dropping crank length, new shoe). The inventory + change log gives the coach a starting place to look.

What the coach does NOT do with your list

• Auto-buy or recommend specific brands.
• Track wear and mileage automatically (you log shoe mileage in notes if you want it tracked).
• Make wetsuit decisions automatically based on race water temperature (that is a manual coach call).

What to keep up to date

• After any equipment change, update the record. New saddle? New wheels? New shoes? Update the row plus a short note ("upgraded saddle, comfort improved").
• After a fit session, update the seven fit measurements (see Logging fit measurements).
• After a CdA test, update last_cda (or it updates automatically if you ran the test from the wizard).
• Annually, audit the list and retire anything you no longer use.

See also: Bike setup overview, Logging fit measurements, Bike Power Plan calculator.