BMW m340i 2021 - Page 321

Tire size Pressure specifications
in bar/PSI
Specifications in
bar/PSI with cold
tires
225/50 R 17 98
H XL M+S
2.4 / 35 2.7 / 39
225/45 R 18 95
H XL M+S
2.7 / 39 3.1 / 45
Front: 225/45 R
18 95 Y XL
2.8 / 41 -
Rear: 255/40 R
18 99 Y XL
- 2.8 / 41
Front: 225/40 R
19 93 Y XL
3.0 / 44 -
Rear: 255/35 R
19 96 Y XL
- 3.0 / 44
Front: 225/35 R
20 90 Y XL
3.4 / 49 -
Rear: 255/30 R
20 92 Y XL
- 3.4 / 49
Front: 225/45 R
18 95 V XL M+S
3.0 / 44 -
Rear: 255/40 R
18 99 V XL M+S
- 3.0 / 44
Emergency
wheel:
T 135/80 R 17
102 M
Speed up to a max. of
50 mph / 80 km/h
4.2 / 60
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.
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 2120
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
2120: tire age
Tires with DOT codes meet the guidelines of the
U.S. Department of Transportation.
Seite 321
Wheels and tires
MOBILITY
321
Online Edition for Part no. 01405A111C1 - VI/20