......just checked my 7 year old caravan tyres prior to a long tow trip.
A very thorough check as the wheels and tyres are off the ground on axle stands.
At first glance the tyres looked OK but on spinning very slowly, discovered a slight bulge in one.
Not good with a pressure of 64psi.
Just ordered 2 Hankook Ra58 195/70R15C 104/102R .....not cheap but willing to pay to try and minimise any problems.
Caravan is single axle carrying 1600kgs.
Don't buy cheap tyres for a caravan would be my advice to the OP
PS: tyre fitter advised that if my 7 year old tyres were implicated in an insurance claim it would likely be refused.