High taxi speeds, (above 30kts), along with the obvious risks, result in high bead temperatures,
Not sure what you are referring to with 'bead temp', but 30kts isn't too fast when you have a 2 mile straight line to taxi along!
The braking technique, 30 to 10kts, is an airbus recommended technique and works very well. The procedure came about with carbon brakes whereby brake wear is primarily determined by the number of applications. Less wear takes place once the brakes are at a reasonable temperature and this is achieved by the above technique.
For the sceptics, I dont advocate 30 kts on a twisty, bumpy taxi way, and believe it or not, we even consider the cabin crew when we taxi!!
