Note that this probably also works with other BMW models with the tyre pressure monitoring (RDC) option fitted, but I have only tried it on my K1200GT.
If you need to adjust your tyre pressures and you don't have a tyre pressure gauge with you:
- ride the bike until the dash starts displaying the pressures
- stop the bike and then stop the engine, without touching the key in the ignition. Use the kill-switch
- adjust pressures, noting that as you do so, the dash display changes
- ride the bike :-)
This may be obvious to people smarter than me. RDC is a wonderful feature to have.