Owner's Manual
Page 208
... the permissible load and weights can be found on ZR tires) Speed code letter (in front of the U.S. Wheels and tires 550i Tire size Compact wheel*: T 135/80 R 17 102 M Traveling speeds up to 186 mph/300 km/h Tire Identification Number ...mph/270 km/h Tire size For instance 225/50 R 17 94 W Nominal width in mm Aspect ratio in Ξ Radial belt construction Rim diameter in psi/ kilopascal with DOT codes meet the guidelines of the R on the side of Transportation. Speed letter Q = up to... W = up to max. DOT code: 206 Online Edition for Part no. 01 41 2 602 678 - © 08/09 BMW AG
... the permissible load and weights can be found on ZR tires) Speed code letter (in front of the U.S. Wheels and tires 550i Tire size Compact wheel*: T 135/80 R 17 102 M Traveling speeds up to 186 mph/300 km/h Tire Identification Number ...mph/270 km/h Tire size For instance 225/50 R 17 94 W Nominal width in mm Aspect ratio in Ξ Radial belt construction Rim diameter in psi/ kilopascal with DOT codes meet the guidelines of the R on the side of Transportation. Speed letter Q = up to... W = up to max. DOT code: 206 Online Edition for Part no. 01 41 2 602 678 - © 08/09 BMW AG