I have for sale four run flats from my 135i. They fit the staggered 261M alloys:
Front: 2x BRIDGESTONE Potenza RE 050 A (215/40R18 85Y)
Rear: 2x BRIDGESTONE Potenza RE 050 A (245/35R18 88Y)
Tyres have about 4-5mm of tread left across the centre. They covered about 4,000 miles before I replaced them with non-RFTs.
£225 ono for all four. May consider splitting the set into pairs.
Situated in Maidenhead, Berkshire (UK). Collection only.