Hi Mark
Thanks for that. The garage is a Rover specialist that has a proper pump - and he's not a young guy! Hopefully he didn't let the apprentice loose on it.
The suspension has always been hard - I just thought Trophys were like that. Must have had some decent give though, as it passed it's MOT between being pumped again.
MGFN'TFBITZ claim a stock of Trophy spheres so hopefully they'll have some. Will have to get the garage to do the job though because of the pump.
Does sound like the Nitrogen in the top part of a sphere is going or has gone, which will cause it to sink again and give a very hard ride. or as Mark has said it was not pumped up properley. you do need someone with a pump to release the pressure (400 psi) and the fluid. There are a few new Trophy spheres around, but they are a bit like "hens teeth" or "rocking horse poo" ~ Give Jon Norris Rough Luck Racing a PM to see if he will come and do them for you. He is in Rutland and travels and will charge far less than the Rover dealership
.