BMW Z4
Find Tyres for 2018-present BMW Z4 (G29)
Common factory fitments and replacement guidance for the 2018-present BMW Z4.
About this generation
This generation of the Z4 runs on 19-inch or larger wheels in some trims, which means short-sidewall tyres that handle precisely but are less forgiving on rough UK roads.
BMW fits run-flat tyres on many Z4 models, paired with tyre pressure monitoring and no spare wheel. If your car was supplied with run-flats, replacements should typically also be run-flats.
Chassis code: G29. Use the chassis code to confirm you have the right generation when ordering tyres.
Common factory tyre sizes
UK-market factory fitments for the 2018-present BMW Z4 typically include:
BMW works with tyre makers to develop OEM-marked versions for the Z4, tuned for the car's suspension calibration. Star, MO, AO or J markings indicate manufacturer-approved tyres.
Wet grip is the most relevant EU label rating for UK driving. On the Z4, prioritise wet grip A or B for shorter braking in rain.
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Tyre sizes vary by trim, year, wheel size and manufacturer specification. Confirm the size on your tyre sidewall before fitting.
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Frequently asked questions
Quick answers about UK tyre fitment, MOT rules and seasonal options.
What's different about the 2018-present Z4 compared with other generations?
This is the 2018-present generation of the BMW Z4. Earlier and later generations use different platforms, wheel sizes and tyre fitments, so always match your specific year to the correct generation page.
What tyre size does the 2018-present BMW Z4 use?
Common UK factory fitments for the 2018-present BMW Z4 include 225/45 R18, 255/40 R18, 255/35 R19, 275/30 R19. The exact size depends on the wheel and trim ordered — always confirm on your tyre sidewall before fitting.
Can I downsize from larger wheels on my BMW Z4?
Some trims of the Z4 can be downsized to a smaller OEM-approved wheel, which often gives better ride and lower tyre cost. BMW usually publishes approved alternative sizes — check the handbook before changing wheel size.
Why does the same Z4 generation list multiple tyre sizes?
Within one generation of the Z4, BMW offered different wheel sizes by trim and option pack. A Sport or M Sport variant might use wider, lower-profile tyres than the entry trim. Always go by the actual wheel fitted to your car.
How long should tyres last on the 2018-present BMW Z4?
Typical UK tread life on the BMW Z4 is around 20,000-40,000 miles depending on tyre brand, road conditions and driving style. Heavier trims tend to wear faster.
Tyre Finder UK provides general tyre guidance only. We do not guarantee tyre fitment, local stock, prices or fitting availability. Always confirm your tyre size, load rating, speed rating and vehicle requirements using your current tyre sidewall, vehicle handbook, manufacturer guidance or a qualified tyre fitter before fitting.