Acura RDX Spare Tire Fitment Guide
The Acura RDX used a 5x4.5" (5x114.3 mm) bolt pattern for all models from 2007 to 2026 along with tire diameters ranging from 27.7" to 29.2" tall. Using a temporary compact spare tire with a diameter close to the standard tire has many benefits, especially for modern vehicles with larger brake calipers and anti-lock brakes or traction control systems.
The tire diameter and the wheel diameter clearance have been taken into account for the specific Acura RDX years and options. In this case, 145/85R18 and 155/90R18 spare tire sizes are used to avoid vehicle components while closely matching the original tire size diameters. We've provided a breakdown by vehicle generation and model specifics to help you find the correct Acura RDX spare tire.
2019-2026 Acura RDX Spare Tires
This generation of the Acura RDX began in 2019 and was available through 2026. All the models for these years use the same spare tire and wheel solution including A-Spec and AWD versions.
There was a facelift redesign in 2022 that changed the look of the car, but it did not have a specific impact on the spare tire size.
| Year | Make | Model | Bolt Pattern | Tire Diameters | Recommended Spare Tire |
|---|---|---|---|---|---|
| 2026 | Acura | RDX | 5x4.5" (114.3 mm) | 29-29.2" | 155/90R18 | 29.0" |
| 2025 | Acura | RDX | 5x4.5" (114.3 mm) | 29-29.2" | 155/90R18 | 29.0" |
| 2024 | Acura | RDX | 5x4.5" (114.3 mm) | 29-29.2" | 155/90R18 | 29.0" |
| 2023 | Acura | RDX | 5x4.5" (114.3 mm) | 29-29.2" | 155/90R18 | 29.0" |
| 2022 | Acura | RDX | 5x4.5" (114.3 mm) | 29-29.2" | 155/90R18 | 29.0" |
| 2021 | Acura | RDX | 5x4.5" (114.3 mm) | 29-29.2" | 155/90R18 | 29.0" |
| 2020 | Acura | RDX | 5x4.5" (114.3 mm) | 29-29.2" | 155/90R18 | 29.0" |
| 2019 | Acura | RDX | 5x4.5" (114.3 mm) | 29-29.2" | 155/90R18 | 29.0" |
2013-2018 Acura RDX Spare Tires
This generation of the Acura RDX began in 2013 and was available through 2018. All the models for these years use the same spare tire and wheel solution including AWD versions.
There was a facelift redesign in 2016 that changed the appearance, but it does not affect the spare tire recommendation.
| Year | Make | Model | Bolt Pattern | Tire Diameters | Recommended Spare Tire |
|---|---|---|---|---|---|
| 2018 | Acura | RDX | 5x4.5" (114.3 mm) | 29.1" | 155/90R18 | 29.0" |
| 2017 | Acura | RDX | 5x4.5" (114.3 mm) | 29.1" | 155/90R18 | 29.0" |
| 2016 | Acura | RDX | 5x4.5" (114.3 mm) | 29.1" | 155/90R18 | 29.0" |
| 2015 | Acura | RDX | 5x4.5" (114.3 mm) | 29.1" | 155/90R18 | 29.0" |
| 2014 | Acura | RDX | 5x4.5" (114.3 mm) | 29.1" | 155/90R18 | 29.0" |
| 2013 | Acura | RDX | 5x4.5" (114.3 mm) | 29.1" | 155/90R18 | 29.0" |
2007-2012 Acura RDX Spare Tires
This generation of the Acura RDX began in 2007 and was available through 2012. All the models for these years use the same spare tire and wheel solution including AWD versions.
| Year | Make | Model | Bolt Pattern | Tire Diameters | Recommended Spare Tire |
|---|---|---|---|---|---|
| 2012 | Acura | RDX | 5x4.5" (114.3 mm) | 27.7-28.2" | 145/85R18 | 27.7" |
| 2011 | Acura | RDX | 5x4.5" (114.3 mm) | 27.7-28.2" | 145/85R18 | 27.7" |
| 2010 | Acura | RDX | 5x4.5" (114.3 mm) | 27.7-28.2" | 145/85R18 | 27.7" |
| 2009 | Acura | RDX | 5x4.5" (114.3 mm) | 27.7-28.2" | 145/85R18 | 27.7" |
| 2008 | Acura | RDX | 5x4.5" (114.3 mm) | 27.7-28.2" | 145/85R18 | 27.7" |
| 2007 | Acura | RDX | 5x4.5" (114.3 mm) | 27.7-28.2" | 145/85R18 | 27.7" |