2018 BMW M6 — Convertible
The 2018 BMW M6 Convertible shipped with 4 different factory tire sizes, depending on the wheel package it left the factory with (this can also reflect a staggered front/rear setup). Check your tire sidewall or door placard to confirm which one applies to your vehicle.
This trim shipped with more than one tire size (staggered fitment, front/rear, or optional wheel package). Confirm which one matches your vehicle by checking your tire sidewall or door placard.
265/40R19 (Front)
| Section width | 265 mm |
|---|---|
| Aspect ratio (sidewall height) | 40% (106 mm) |
| Rim diameter | 19" |
| Overall tire diameter | ~27.3" |
| Revolutions per mile | ~738 |
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295/35R19 (Rear)
| Section width | 295 mm |
|---|---|
| Aspect ratio (sidewall height) | 35% (103.3 mm) |
| Rim diameter | 19" |
| Overall tire diameter | ~27.1" |
| Revolutions per mile | ~743 |
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265/35R20 (Front)
| Section width | 265 mm |
|---|---|
| Aspect ratio (sidewall height) | 35% (92.8 mm) |
| Rim diameter | 20" |
| Overall tire diameter | ~27.3" |
| Revolutions per mile | ~739 |
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295/30R20 (Rear)
| Section width | 295 mm |
|---|---|
| Aspect ratio (sidewall height) | 30% (88.5 mm) |
| Rim diameter | 20" |
| Overall tire diameter | ~27" |
| Revolutions per mile | ~748 |
Compare prices at:
What this size means for your BMW M6
On the 2018 BMW M6 Convertible, the factory 265/40R19 measures about 27.3″ in overall diameter with a 106 mm (4.2″) sidewall, and completes roughly 738 revolutions per mile. Its 40-series aspect ratio gives a low-profile sidewall tuned for sharper handling, common on sport trims and larger-wheel packages. In tire terms it is a passenger (P-metric / Euro-metric) size.
This is a staggered setup: the front axle runs 265/40R19 and the rear runs 295/35R19. The two sizes are not interchangeable, so order each for its correct axle and don't rotate front-to-rear.
Other 2018 BMW M6 trims
- Coupe 265/40R19 (Front) / 295/35R19 (Rear) / 265/35R20 (Front) / 295/30R20 (Rear)
- Gran Coupe 265/35R20 (Front) / 295/30R20 (Rear)
BMW M6 tire sizes by year
- 2019 BMW M6 265/40R19 (Front) / 295/35R19 (Rear) / 265/35R20 (Front) / 295/30R20 (Rear)
- 2017 BMW M6 265/40R19 (Front) / 295/35R19 (Rear) / 265/35R20 (Front) / 295/30R20 (Rear)
- 2016 BMW M6 265/35R20 (Front) / 295/30R20 (Rear)
- 2015 BMW M6 265/35R20 (Front) / 295/30R20 (Rear)
- 2014 BMW M6 265/40R19 (Front) / 295/35R19 (Rear) / 265/35R20 (Front) / 295/30R20 (Rear)
- 2013 BMW M6 265/40R19 (Front) / 295/35R19 (Rear) / 265/35R20 (Front) / 295/30R20 (Rear)
- 2010 BMW M6 255/40R19 (Front) / 285/35R19 (Rear)
- 2009 BMW M6 255/40R19 (Front) / 285/35R19 (Rear)
- 2008 BMW M6 255/40R19 (Front) / 285/35R19 (Rear)
- 2007 BMW M6 255/40R19 (Front) / 285/35R19 (Rear)
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.