They should do. Tyres are designed to deform at the bottom to increase surface area in contact with road. Old cross-ply tyres were meant to keep their shape (with very little contact area) and radials are supposed to conform with the road more.basegreen said:When I first pumped my 17" Pentas, they were something like 40PSI(!)
I'm sure the "correct value" is 34 front, 31 rear, but they look soft at this pressure.
The handbook doesn't quote any pressures, it says that the pressures are on the sticker on the driver's door pillar, but to contact your dealer in case of doubt. If you've changed the wheels, then there is certainly doubt.Mr Lovedog said:Sorry to be a pain chaps, but I dont seem to be getting any closer to finding out what pressures are needed for my 18" wheels, it could well be that it is the same as for smaller size wheels.
Surely Im not the only driver with the 18" wheels?