According to the Veleco website, the pressure should be 32.5 psi, but that does seem a tad high.
I'm considering a class 3 scooter from Drive as this time of year all the ruddy grockles take up all the Blue Badge parking spaces and the bus is no good either.
It seems to depend on which spec. you check on which site, for pressures.
This make of scooter, comes in for a lot of criticism, because they have no UK dealer network, and the usual shops will not repair them, because they cannot get repair info on them, plus they massively undercut the dealers profit, selling direct from Poland. Parts seem not to be a problem, they sell on ebay, and they are much better specified than anything sold in the UK. They are perfect, if you can do a bit of servicing, and fixing yourself.
I eventually used my deceased partner's Class 1 Rascal, which she had hardly made use of, then it being stored for several years, unused. I found it a useful, for being easier than struggling to walk the half mile, or take the bus, certainly much quicker than getting the car out. Then a few months ago I started looking for something a bit more up-market, and spotted this Class 3 Gravis, brand new, never used, just stored for two years, but at half the cost of new, so I bought it. The Rascal sold within a week of my advertising it, and the Gravis is absolutely great, better than I expected, quite well-built in fact.
It does all the weekly local shopping, lots of storage under the seat, box on the back of the seat, a bag hook under the steering. I also shifted 3x bags of compost, just laid across the foot-plate. Unlike the Rascal, it doesn't lose speed on the up hills.