Introduction
The Acura RDX has gone through several design updates since its launch in 2006, and with each generation, the wheel fitment specifications have evolved. Whether you’re replacing stock wheels or upgrading to aftermarket options, understanding the correct fitment is crucial. This guide breaks down everything you need to know about tire size, rim size, offset, bolt pattern, and hub bore for every RDX model year. Getting these details right ensures a smoother ride, optimal handling, and better tire wear. Each section covers specific generations so you can easily find the right specifications for your vehicle. Let’s dive into what fits best on your RDX.
Read About: Acura MDX Wheel Fitment
1. Acura RDX Wheel Specifications by Generation
1.1 Acura RDX TC1/TC2 Facelift [2025–2026]
For the latest RDX models from 2025 to 2026, the fitment continues with precision and consistency. The standard bolt pattern is 5×114.3, a common layout that supports various wheel brands. The hub bore measures 64.1 mm, ensuring a snug fit onto the hub. Offset remains at ET50, which keeps the wheels centered in the arches and avoids rubbing.
The 2025 and 2026 models use two primary tire configurations: 235/55R19 mounted on 8Jx19 wheels, and a sportier 255/45R20 on 8Jx20 rims. These options maintain balance between ride comfort and performance. Tire pressure for both front and rear tires ranges between 2.3 to 2.5 bar, depending on the size. The recommended aftermarket wheel sizes range from 19″ to 21″, giving you room to upgrade without sacrificing compatibility. Whether you’re after a more aggressive stance or a refined look, sticking to the original offset and bolt pattern will keep your upgrades worry-free.
| Model Year | Tire Size | Rim Size | Offset (ET) | Center Bore | Bolt Pattern | Thread Size | Torque (Nm) | Tire Pressure (Front/Rear) | Aftermarket Wheel Size Range |
| 2025 | 235/55R19 101H | 8Jx19 ET50 | 50 | 64.1 mm | 5×114.3 | M12 x 1.5 | Unknown | 2.3 / 2.3 bar | 19″–20″ |
| 2025 | 255/45R20 101V | 8Jx20 ET50 | 50 | 64.1 mm | 5×114.3 | M12 x 1.5 | Unknown | 2.5 / 2.5 bar | 20″–21″ |
1.2 Acura RDX TC1/TC2 [2018–2022]
From 2018 to 2022, Acura kept the wheel specs consistent, making wheel replacement and upgrades more predictable. These models also use a 5×114.3 bolt pattern and a 64.1 mm center bore, which is ideal for most aftermarket wheels. The offset sits at ET50, ensuring proper alignment and clearance with the vehicle’s suspension and fenders.
These years commonly feature two tire options: 235/55R19 paired with 8Jx19 rims and 255/45R20 mounted on 8Jx20 wheels. These combinations offer a blend of comfort and road grip suitable for both city and highway driving. Tire pressure remains uniform at 2.3 bar for 19-inch setups and 2.5 bar for 20-inch options. You can comfortably upgrade to aftermarket wheels ranging between 19″ and 21″. Just ensure any aftermarket choice maintains the correct offset and bolt pattern to avoid issues with brake clearance or alignment. These models strike a balance between elegance and performance, giving owners more flexibility in customization.
| Model Year | Tire Size | Rim Size | Offset (ET) | Center Bore | Bolt Pattern | Thread Size | Torque (Nm) | Tire Pressure (Front/Rear) | Aftermarket Wheel Size Range |
| 2018 | 235/55R19 101H | 8Jx19 ET50 | 50 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2018 | 255/45R20 101V | 8Jx20 ET50 | 50 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.5 / 2.5 bar | 20″–21″ |
| 2019 | 235/55R19 101H | 8Jx19 ET50 | 50 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2019 | 255/45R20 101V | 8Jx20 ET50 | 50 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.5 / 2.5 bar | 20″–21″ |
| 2020 | 235/55R19 101H | 8Jx19 ET50 | 50 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2020 | 255/45R20 101V | 8Jx20 ET50 | 50 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.5 / 2.5 bar | 20″–21″ |
| 2021 | 235/55R19 101H | 8Jx19 ET50 | 50 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2021 | 255/45R20 101V | 8Jx20 ET50 | 50 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.5 / 2.5 bar | 20″–21″ |
| 2022 | 235/55R19 101H | 8Jx19 ET50 | 50 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2022 | 255/45R20 101V | 8Jx20 ET50 | 50 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.5 / 2.5 bar | 20″–21″ |
1.3 Acura RDX TB3/4 Facelift [2016–2018]
The 2016 to 2018 facelifted RDX offers a wider range of wheel and tire combinations. This generation supports 18″, 19″, and 20″ wheels, offering something for every driving style. The bolt pattern remains 5×114.3, hub bore is 64.1 mm, and offset is ET45 across all trims. This makes sourcing wheels easier, whether OEM or aftermarket.
Available tire sizes include 235/60R18, 255/55R18, 235/55R19, 255/50R19, and the sportier 255/45ZR20. Rim widths vary slightly between 7.5J and 8J depending on the size. This setup allows owners to fine-tune ride quality and performance. Lower offset means slightly more wheel poke, giving the car a wider stance. Tire pressures are mostly set at 2.3 bar, with 20″ options needing 2.5 bar for stability. This generation’s flexible fitment gives you more aftermarket freedom while keeping handling responsive and safe.
| Model Year | Tire Size | Rim Size | Offset (ET) | Center Bore | Bolt Pattern | Thread Size | Torque (Nm) | Tire Pressure (Front/Rear) | Aftermarket Wheel Size Range |
| 2016 | 235/60R18 102V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 18″–19″ |
| 2016 | 255/55R18 105V | 8Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 18″–19″ |
| 2016 | 235/55R19 101V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2016 | 255/50R19 101V | 8Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2016 | 255/45ZR20 101W | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.5 / 2.5 bar | 20″–21″ |
| 2017 | 235/60R18 102V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 18″–19″ |
| 2017 | 255/55R18 105V | 8Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 18″–19″ |
| 2017 | 235/55R19 101V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2017 | 255/50R19 101V | 8Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2017 | 255/45ZR20 101W | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.5 / 2.5 bar | 20″–21″ |
| 2018 | 235/60R18 102V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 18″–19″ |
| 2018 | 255/55R18 105V | 8Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 18″–19″ |
| 2018 | 235/55R19 101V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2018 | 255/50R19 101V | 8Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2018 | 255/45ZR20 101W | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.5 / 2.5 bar | 20″–21″ |
1.4 Acura RDX TB3/4 [2013–2015]
From 2013 to 2015, the RDX continued with a similar fitment approach, sticking with the 5×114.3 bolt pattern and 64.1 mm center bore. The offset during these years is consistent at ET45, giving enough clearance without compromising suspension geometry. Rim sizes range between 7.5J and 8J, depending on the tire setup.
Factory tire sizes include 235/60R18, 255/55R18, 235/55R19, and 255/50R19, with an optional 255/45ZR20 for those wanting a sportier look. Tire pressure across the board sits around 2.3 bar for smaller sizes, and 2.5 bar for 20-inch wheels. These models are compatible with aftermarket wheels from 18″ to 21″, offering plenty of upgrade room. Even if you stick to OEM sizes, changing to a different design or lightweight alloy can improve both aesthetics and performance. Keep in mind that offset and hub bore must be exact to avoid vibration or poor alignment.
| Model Year | Tire Size | Rim Size | Offset (ET) | Center Bore | Bolt Pattern | Thread Size | Torque (Nm) | Tire Pressure (Front/Rear) | Aftermarket Wheel Size Range |
| 2016 | 235/60R18 102V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 18″–19″ |
| 2016 | 255/55R18 105V | 8Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 18″–19″ |
| 2016 | 235/55R19 101V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2016 | 255/50R19 101V | 8Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2016 | 255/45ZR20 101W | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.5 / 2.5 bar | 20″–21″ |
| 2017 | 235/60R18 102V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 18″–19″ |
| 2017 | 255/55R18 105V | 8Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 18″–19″ |
| 2017 | 235/55R19 101V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2017 | 255/50R19 101V | 8Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2017 | 255/45ZR20 101W | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.5 / 2.5 bar | 20″–21″ |
| 2018 | 235/60R18 102V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 18″–19″ |
| 2018 | 255/55R18 105V | 8Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 18″–19″ |
| 2018 | 235/55R19 101V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2018 | 255/50R19 101V | 8Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.3 / 2.3 bar | 19″–20″ |
| 2018 | 255/45ZR20 101W | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.5 / 2.5 bar | 20″–21″ |
1.5 Acura RDX TB1/2 Facelift [2010–2012]
This facelifted generation introduced new tire sizes like 235/50R19 and 245/45R20 while retaining the familiar 5×114.3 bolt pattern and 64.1 mm center bore. The rim offset stays steady at ET45. Rim sizes range from 18″ to 20″, giving owners a good spread for comfort or sporty upgrades.
The 235/55R18 tire remains the most common, often seen on 7.5Jx18 rims. Higher-end trims or upgrades include 245/45R20 on 8Jx20 wheels, offering a wider contact patch and sharper appearance. Tire pressure recommendations are slightly lower here, starting at 2.2 bar for 18″ and 2.4 bar for 20″ wheels. This setup works well for both daily drives and weekend adventures. When switching to aftermarket options, staying within the same offset range ensures no rubbing or suspension interference. With the right wheels, you can modernize this generation while maintaining a smooth, factory-quality ride.
| Model Year | Tire Size | Rim Size | Offset (ET) | Center Bore | Bolt Pattern | Thread Size | Torque (Nm) | Tire Pressure (Front/Rear) | Aftermarket Wheel Size Range |
| 2010 | 235/55R18 99V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 18″–19″ |
| 2010 | 235/50R19 99V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 19″–20″ |
| 2010 | 245/45R20 99V | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.4 / 2.4 bar | 20″–21″ |
| 2011 | 235/55R18 99V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 18″–19″ |
| 2011 | 235/50R19 99V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 19″–20″ |
| 2011 | 245/45R20 99V | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.4 / 2.4 bar | 20″–21″ |
| 2012 | 235/55R18 99V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 18″–19″ |
| 2012 | 235/50R19 99V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 19″–20″ |
| 2012 | 245/45R20 99V | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.4 / 2.4 bar | 20″–21″ |
1.6 Acura RDX TB1/2 [2006–2009]
The original RDX models set the standard for consistent fitment. These years also feature a 5×114.3 bolt pattern, a 64.1 mm hub bore, and an offset of ET45. Rim widths remain between 7.5J and 8J, offering a firm yet comfortable grip on the road. These specs provide a reliable foundation for both stock replacements and aftermarket customizations.
Common tire sizes include 235/55R18, 235/50R19, and 245/45R20. Tire pressure is typically set at 2.2 bar for smaller wheels and 2.4 bar for 20″ configurations. These models accept aftermarket sizes from 18″ to 21″, provided the offset and center bore match the original spec. Given their age, many owners opt for modern alloys to refresh the look. Just make sure the new wheels don’t stray from the original measurements to avoid handling issues. These early models may be older, but their solid wheel setup still allows for clean and effective upgrades.
| Model Year | Tire Size | Rim Size | Offset | HUB Bore | Bolt Pattern | Thread | Torque (Nm) | Tire Pressure | Aftermarket Wheel Size |
| 2006 | 235/55R18 99V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 18″–19″ |
| 2006 | 235/50R19 99V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 19″–20″ |
| 2006 | 245/45R20 99V | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.4 / 2.4 bar | 20″–21″ |
| 2007 | 235/55R18 99V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 18″–19″ |
| 2007 | 235/50R19 99V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 19″–20″ |
| 2007 | 245/45R20 99V | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.4 / 2.4 bar | 20″–21″ |
| 2008 | 235/55R18 99V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 18″–19″ |
| 2008 | 235/50R19 99V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 19″–20″ |
| 2008 | 245/45R20 99V | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.4 / 2.4 bar | 20″–21″ |
| 2009 | 235/55R18 99V | 7.5Jx18 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 18″–19″ |
| 2009 | 235/50R19 99V | 7.5Jx19 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.2 / 2.2 bar | 19″–20″ |
| 2009 | 245/45R20 99V | 8Jx20 ET45 | 45 | 64.1 mm | 5×114.3 | M12 x 1.5 | 108 | 2.4 / 2.4 bar | 20″–21″ |
2. Acura RDX Wheel Bolt Pattern, Offset & Center Bore
Every Acura RDX from 2006 through 2026 uses a uniform bolt pattern of 5×114.3, making wheel shopping simpler across all generations. This pattern is common in many Honda and Acura models, increasing your options for direct-fit wheels. The center bore is consistently 64.1 mm, which helps the wheel center snugly onto the hub without vibrations.
When it comes to offset, the RDX falls between ET45 and ET50, depending on the model year. Newer models (2018 and beyond) lean towards ET50, keeping the wheels more tucked in for better fender alignment. Older models (2006–2017) feature ET45, giving a slightly wider stance. Always ensure the offset of your aftermarket wheels is within this range to avoid suspension issues or fender rubbing. While hub-centric rings can help with fitment, sticking to the OEM bore size ensures perfect alignment and a safer ride.
3. Acura RDX Tire Size & Recommended Pressure
Tire sizes vary slightly across RDX generations, but most fall into three main categories: 235/55R19, 255/45R20, and 235/60R18. These sizes provide a great balance between road comfort, performance, and fuel efficiency. The sidewall height also ensures protection over bumps and uneven roads.
For proper handling and tire longevity, maintaining the right tire pressure is key. For 18″ tires, pressure typically sits around 2.2 to 2.3 bar. For 19″ options, the standard is 2.3 bar, and for 20″ setups, you should maintain 2.4 to 2.5 bar. Proper inflation reduces rolling resistance, improves fuel economy, and extends tread life. Always consult your door jamb sticker or owner’s manual before adjusting pressure. Tire pressure sensors also need recalibration when switching wheel sizes, so don’t overlook this step during upgrades.
4. Recommended Aftermarket Wheel Sizes for Acura RDX
The Acura RDX supports a wide range of aftermarket sizes, with the most compatible range being 18″ to 21″. For daily driving and ride comfort, 18″ or 19″ wheels work well. If you’re going for a performance or aesthetic upgrade, 20″ or 21″ wheels deliver that bold appearance without compromising ride quality—as long as offset and hub bore match the original specs.
Stick with rim widths between 7.5J and 8J, depending on your tire size. The offset should stay close to factory settings—ET45 to ET50—to avoid misalignment. Going too low or too high can lead to rubbing or suspension stress. When choosing new wheels, consider factors like material, weight, and spoke design. Lighter alloys improve acceleration and braking while multi-spoke or concave designs enhance the vehicle’s profile. Whether you’re chasing style or performance, staying within the recommended range ensures your upgrade is both safe and functional.
5. Wheel Fitment Tips for Acura RDX Owners
Choosing wheels is more than just size and style—you need to consider overall compatibility. Always double-check the bolt pattern (5×114.3), center bore (64.1 mm), and offset (ET45–ET50). These three specs will make or break the success of your fitment.
If you’re going wider or taller with wheels, test for brake clearance and suspension clearance before committing. Aftermarket lug nuts may be required, especially if you’re switching from factory alloys. Don’t forget to torque them to the recommended 108 Nm to avoid warping or wheel separation. Also, pay attention to your tire pressure monitoring system (TPMS) compatibility. Some aftermarket wheels don’t support OEM sensors, so check this before purchase. When in doubt, consult a wheel expert or your vehicle’s service manual. A little homework ensures your new wheels don’t cause more problems than improvements.
6. Frequently Asked Questions (FAQs)
Q1: What’s the correct offset for Acura RDX aftermarket wheels?
A: Stay between ET45 and ET50 for best fitment without rubbing or clearance issues.
Q2: Can I fit 22” wheels on an Acura RDX?
A: It’s not recommended. 21″ is the practical limit to avoid harming ride quality or suspension geometry.
Q3: Do all RDX models use the same bolt pattern?
A: Yes. Every Acura RDX from 2006–2026 uses a 5×114.3 bolt pattern.
Q4: What’s the torque specification for Acura RDX lug nuts?
A: The standard torque is 108 Nm for all model years.
Conclusion
Whether you’re maintaining your factory setup or customizing your RDX with aftermarket wheels, understanding the specs is crucial. From bolt pattern and offset to tire pressure and center bore, every detail plays a role in safety and performance. Acura has kept things consistent over the years, especially with its 5×114.3 bolt pattern and 64.1 mm hub bore, which simplifies wheel upgrades. Stick to the recommended guidelines, and you can enjoy both style and function without compromise.
