Tyre pressure
A starting pressure from your weight and your tyres, front and rear separately. Ride it, then move half a bar either way until it feels right — that last step is yours, not the calculator's.
Rider and bike
In the kit you ride in, including shoes and helmet.
Including bottles, bags and anything else strapped on.
System weight
84kg
Tyres
Measure the fitted tyre if you can. A wide rim can make a labelled 28 measure 30 or more.
Optional. If set, nothing above it is recommended.