So from searching on here it seems the TPS valves on the 250 should automatically update when you rotate the wheels front to back yes? If I've not read that worng, how long does this take as I've just had 2 new F1's fitted to the front (and presumably inflated past 45psi to seat them) and the existing rims swapped to the back. The problem is, the sensors are now saying 2.3bar rear and 2.0 front, despite the fact I know otherwise as I've just set them myself. Will they just sort themselves out or do I have to do anything? Ta! Nathan.