Tire Identification Marks; Tire Size - BMW 4 Series Owner's Manual

Mobility

Tire size

Front: 225/35 R 20
90 Y XL RSC
Rear: 255/30 R 20
92 Y XL RSC
Compact wheel
T 135/80 R 17 102
M
435i, 435i xDrive
Tire size
Specifications in
bar/PSI with cold
tires
225/50 R 17 94 V M
+S A/S RSC
225/50 R 17 94 W
RSC
225/50 R 17 94 H M
+S RSC
225/45 R 18 91 V M
+S A/S RSC
(Without high-speed
tuning feature)
225/45 R 18 91 Y
RSC
225/45 R 18 95 V M
+S XL RSC
225/40 R 19 93 V M
+S XL A/S RSC
Front: 225/50 R 17
94 W RSC
Rear:
255/45 R 17 98 W
RSC
184
Wheels and tires
Pressure specifica‐
tions in bar/PSI
2.6 / 38 -
- 3.1 / 45
Speed up to a max. of
50 mph / 80 km/h
4.2 / 60
Pressure specifica‐
tions in bar/PSI
2.5 / 36 3.0 / 44
2.7 / 39 3.2 / 46
2.9 /42 3.2 / 46
2.5 / 36 -
- 2.8 / 41
Online Edition for Part no. 0140 2 909 827 - VI/13
Tire size
Front: 225/45 R 18
91 Y RSC
Rear:
255/40 R 18 95 Y
RSC
Front: 225/40 R 19
89 Y RSC
Rear:
255/35 R 19 92 Y
RSC
Front: 225/35 R 20
90 Y XL RSC
Rear: 255/30 R 20
92 Y XL RSC
Compact wheel
T 135/80 R 17 102
M

Tire identification marks

Tire size
245/45 R 18 96 Y
245: nominal width in mm
45: aspect ratio in %
R: radial tire code
18: rim diameter in inches
96: load rating, not for ZR tires
Y: speed rating, before the R on ZR tires
Speed letter
T = up to 118 mph, 190 km/h
H = up to 131 mph, 210 km/h
V = up to 150 mph, 240 km/h
W = up to 167 mph, 270 km/h
Y = up to 186 mph, 300 km/h
Pressure specifica‐
tions in bar/PSI
2.5 / 36 -
- 2.8 / 41
2.7 / 39 -
- 2.8 / 41
2.9 /42 -
- 3.4 / 49
Speed up to a max. of
50 mph / 80 km/h
4.2 / 60