Originally Posted by Micky Dee
I read that if you replace run flats with normal tyres you can nullify the insurance. Apparently, you're changing the original spec of the vehicle! Is this the case?
The situation with insurance is that the customer must disclose anything relevant.
I would say that the choice of tyres is not relevant. You wouldn't tell you insurers if you put pirellis on, but the car came with michelin. I don't think this is any more significant than that.