I don't think I did because the tire has the 160x60R size. I assumed the R meant Radial even though it doesn't spell it out like the Bridgestones do. Comments? Did I mess up?Steve D UK said:Have you removed an OE recommended radial tyre and replaced it with a bias belted one? If so, it could be because you are mixing tyre types. Suzuki recommended radial tyres, front and rear, for a reason I suppose.