Wheel and tire combinations, Wheel and tire, Combinations – BMW 01 41 0 155 307 User Manual

Page 127

127

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Data

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Overview

Wheel and tire combinations

The right choice

Use only tires approved by BMW.
Refer to the information beginning on
page

129

Due to the high speeds this vehicle can
reach, the use of specific brands, spec-
ifications and sizes is mandatory.
Consult any BMW center for details.
Comply with local/national regulations.

The correct wheel-tire combina-
tion affects different systems such

as ABS, ATC and ASC+T/DSC. The
function of these systems is impaired if
improper wheel-tire combinations are
used.
For this reason, use only tires of the
same brand and tread pattern. In the
event of a flat tire, for example, remount
the approved wheel-tire combination as
soon as possible.

Codes on tires and wheels

The tire codes will aid you in selecting
the correct tire.

Codes on radial tires:

The speed rating indicates the approved
maximum speed for the tire.

Summer tires:

= up to 112 mph (180 km/h)

= up to 118 mph (190 km/h)

= up to 130 mph (210 km/h)

= up to 150 mph (240 km/h)

W = up to 167 mph (270 km/h)
Y

= up to 187 mph (300 km/h)

ZR = over 150 mph (240 km/h)

For example:

Nominal width
in mm
Aspect ratio in %
Radial tire code
Rim diameter in inches
Load rating
(not on ZR tires)
Speed rating
(before R on ZR tires)

205/60 R 15 91 W

Winter tires:

Q M+S = up to 100 mph (160 km/h)
T M+S = up to 118 mph (190 km/h)
H M+S = up to 130 mph (210 km/h)

Codes stamped on light-alloy wheels:

Protect tire valves from dirt by using
screw-on valve stem caps. Dirt in the
valves frequently leads to slow leaks.

For example:

Rim width
in inches
Code letter for
flange type
Symbol for full-drop
center rim
Rim diameter in inches
Hump on the 2 rim shoulders

x 15

H 2