General question, although I suspect there's no definitive answer. If you had a set of part-worn RFTs for sale, 2x 255/35/18 2x225/45/18 , would you try and sell them as a set, in pairs, or individually?
Most people would generally buy tyres in pairs, so you're best selling them in pairs. I've sold a few tyres on fleabay from various cars over the years. Always sell better as pairs...