Tire Identification Number; Tire Identification Marks; Tire Size; Tire Age - BMW i8 COUPE Owner's Manual

MOBILITY
Tire inflation pressure values over
100 mph/160 km/h
i8 Coupe

Tire size

Pressure specifications in
bar/PSI
Specifications in
bar/PSI with cold
tires
215/45 R 20 95 2.3 / 33
V M+S XL Std
Front: 195/50 R 2.5 / 36
20 93 W XL Std
Rear: 215/45 R -
20 95 W XL Std
Front: 215/45 R 2.3 / 33
20 95 W XL Std
Rear: 245/40 R -
20 99 W XL Std

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

Maximum tire load

Maximum tire load is the maximum permissible
weight for which the tire is approved.
214
Wheels and tires
2.8 / 41
-
3.0 / 44
-
2.8 / 41
Online Edition for Part no. 01402989296 - II/18
Locate the maximum tire load on the tire sidewall
and the Gross Axle Weight Rating – GAWR – on
the certification label on the driver's door 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
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

Tire Identification Number

DOT code: DOT xxxx xxx 0118
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design

0118: tire age

Tires with DOT codes meet the guidelines of the
U.S. Department of Transportation.
Tire age
Recommendation
Regardless of the tire tread, replace tires at least
every 6 years.
Manufacture date
You can find the manufacture date of the tire on
the tire's sidewall.
Designation
DOT ... 0118
Manufacture date
1st week, 2018