BMW i7 - Page 335

i7 M70 xDrive
Tire size Pressure specifications
in bar/PSI
Specifications in
bar/PSI with cold
tires
245/50 R 19 105
H XL M+S
3.0 / 44 3.3 / 48
Front: 255/45 R
20 105 H XL A/S
2.8 / 41 -
Rear: 285/40 R
20 108 H XL A/S
- 3.0 / 44
Front: 255/45 R
20 105 Y XL
2.8 / 41 -
Rear: 285/40 R
20 108 Y XL
- 3.0 / 44
Front: 255/40 R
21 102 Y XL
3.1 / 45 -
Rear: 285/35 R
21 105 Y XL
- 3.4 / 49
Front: 255/45 R
20 105 V XL M+S
3.1 / 45 -
Rear: 285/40 R
20 108 V XL
M+S
- 3.4 / 49
Front: 255/40 R
21 102 H XL M+S
3.1 / 45 -
Rear: 285/35 R
21 105 H XL M+S
- 3.4 / 49
Tire marking
Tire size
245/45 R 18 96 Y
245: nominal width in mm
45: cross-sectional relationship in %
R: radial tire code
18: rim diameter in inches
96: load bearing capacity
Y: speed code letter
ZR tires: reinforced radial tire for speeds ex-
ceeding 150 mph/240 km/h
Maximum tire load
Maximum tire load is the maximum permissi-
ble weight for which the tire is approved.
Locate the maximum tire load on the tire
sidewall and the Gross Axle Weight Rating –
GAWR – on the certification label on the driver
door B-pillar. Divide the tire load by 1.1. It must
be greater than one-half of the vehicle’s Gross
Axle Weight Rating – GAWR. Note, front vs.
rear GAWR and tire loads, respectively.
Speed letter
Designation Maximum speed
Q up to 100 mph/160 km/h
R up to 106 mph/170 km/h
S up to 112 mph/180 km/h
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
(Y) above 186 mph/300 km/h
Tire Identification Number
DOT Code: DOT xxxx xxx 1923
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
1923: tire age
Seite 335
Wheels and tires
MOBILITY
335
Online Edition for Part no. 01405A88D67 - VI/23