2025 Volvo XC90 — B6 Plus
The 2025 Volvo XC90 B6 Plus shipped with 2 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.
275/40R21
| Section width | 275 mm |
|---|---|
| Aspect ratio (sidewall height) | 40% (110 mm) |
| Rim diameter | 21" |
| Overall tire diameter | ~29.7" |
| Revolutions per mile | ~680 |
Compare prices at:
275/35R22
| Section width | 275 mm |
|---|---|
| Aspect ratio (sidewall height) | 35% (96.3 mm) |
| Rim diameter | 22" |
| Overall tire diameter | ~29.6" |
| Revolutions per mile | ~682 |
Compare prices at:
What this size means for your Volvo XC90
On the 2025 Volvo XC90 B6 Plus, the factory 275/40R21 measures about 29.7″ in overall diameter with a 110 mm (4.3″) sidewall, and completes roughly 680 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 large-diameter fitment.
The 275/40R21 and 275/35R22 roll within 0.1″ (0.3%) of each other in overall diameter, so they are interchangeable from a speedometer standpoint — the second size is an optional wheel package rather than a different rolling size.
Other 2025 Volvo XC90 trims
Volvo XC90 tire sizes by year
- 2026 Volvo XC90 275/45R20 / 275/40R21
- 2024 Volvo XC90 235/55R19 / 275/45R20
- 2023 Volvo XC90 235/55R19 / 275/45R20
- 2022 Volvo XC90 275/45R20 / 275/40R21 / 275/35R22
- 2021 Volvo XC90 275/45R20 / 275/40R21 / 275/35R22
- 2020 Volvo XC90 275/45R20 / 275/35R22
- 2019 Volvo XC90 235/60R18 / 235/55R19 / 275/45R20 / 275/35R22
- 2018 Volvo XC90 235/60R18 / 235/55R19 / 275/45R20 / 275/35R22
- 2017 Volvo XC90 235/60R18 / 235/55R19 / 275/45R20
- 2016 Volvo XC90 235/55R19 / 275/45R20 / 275/40R21 / 275/35R22
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.