This summer tire from Bridgestone comes with a profile of 0%, a width of 225 mm and a diameter of 18". The speed index is W (270 km/h), and is the maximum speed the tire may be exposed to.
From Tyres
Bridgestone Turanza EL 450 RFT (225/45 R18 91W)
Tirendo
Bridgestone Turanza EL 450 RFT ( 225/45 R18 91W AR, runflat )