2013 Acura RDX Wheel Interchange

Introduction

This page summarizes the factory wheel and tire fitment for the 2013 Acura RDX and explains how to use the on-page wheel/tire fitment calculator to check swaps, donor wheels, or custom wheel/tire packages. The guidance focuses on safe, do-it-yourself and technician-friendly procedures — do not fit wheels or hardware that do not match the vehicle’s hub, lug thread, or braking clearance without using the appropriate adapters or professional help.

If any specification varies by trim or is not certain for your vehicle, the safest approach is to confirm the value on the vehicle (door jamb sticker/owner’s manual) or with the dealer and then use the calculator below to validate fitment.

Quick fitment summary (TL;DR)

• Factory bolt pattern: 5x114.3 — wheels must match this PCD or require a specialist adapter.
• Center bore: 64.1 mm — hub-centric rings required if aftermarket wheel bore is larger.
• Lug thread size: M12 x 1.5 — use matching lug nuts/studs; do not mix incompatible threads.
• Factory wheel size: 18 x 7.5 inches, offset (ET): 45 mm, backspacing: 5.52 in.
• Factory tire: 235/60R18 (section width 235 mm, aspect ratio 60, rim diameter 18").
• Changing rim diameter updates tire overall diameter in the calculator — always compare final rolling diameter and speedometer impact.
• 10 mm change in offset shifts wheel centerline roughly 10 mm laterally — check for rubbing and braking clearance.
• Always confirm lug torque and wheel-seat style from the owner’s manual or dealer before final installation.

How to use the on-page fitment calculator

1. Locate the calculator area labeled “Wheels from (donor vehicle)” and “Installed on (your vehicle)”. The page pre-fills Acura RDX 2013 as the installed vehicle.
2. Select or enter the donor/different wheel package in “Wheels from” if comparing wheels from another vehicle, or choose “Custom wheel size” to test a specific rim diameter, width, and offset.
3. Under “Custom tire size” enter the tire section width and aspect ratio for the tire you plan to use — changing rim diameter will automatically update tire overall diameter in the comparison.
4. Review the calculator output: clearance for brakes, fenders, suspension, and any change in rolling diameter or speedometer error. Pay attention to lateral position changes from offset differences.
5. If center bore differs, the calculator will flag the need for hub-centric rings; if bolt pattern differs it will indicate incompatibility without an adapter.
6. Make adjustments (offset, width, tire size) until the calculator shows acceptable clearances. Use OEM trim-specific values when available; if uncertain, confirm with the owner’s manual or dealer.
7. Before final installation, measure on-vehicle clearances physically and verify lug nut seat type and torque spec from the manufacturer — the calculator is a planning tool, not a substitute for a physical check.

What each specification means

• Bolt pattern (5x114.3): Number of wheel studs/bolts and the diameter (in mm) of the circle those studs form (PCD). Wheels must match this or use an approved adapter.
• Center bore (64.1 mm): Diameter of the wheel center hole. Wheels with larger bores need hub-centric rings to center on the hub; wheels with smaller bores will not fit.
• Thread size (M12 x 1.5): Diameter and pitch of the wheel stud/bolt thread. Lug nuts must match this metric size and pitch exactly.
• Rim diameter & width (18 x 7.5): Diameter and width of the wheel. These determine tire sizing and clearance requirements.
• Offset / ET (45 mm): Distance from the wheel mounting face to the wheel centerline. Positive offset moves the wheel inward, negative offset moves it outward; offset affects track width and rubbing risk.
• Backspacing (5.52 in): Distance from the mounting face to the rear lip of the wheel — another way to understand wheel positioning relative to the suspension and fenders.
• Tire size (235/60R18): Section width (mm), aspect ratio (%) and rim diameter (in). This defines the tire’s overall diameter and sidewall height.

Mismatch troubleshooting

Bolt pattern (5x114.3)

If the bolt pattern does not match, the wheel cannot be mounted without an adapter. Wheel adapters that change bolt pattern exist, but they must be hub-centric, properly rated for the vehicle load, and installed with the correct thread engagement. Adapters add stress and change suspension geometry — consult a professional.

Center bore (64.1 mm)

If an aftermarket wheel’s center bore is larger than 64.1 mm, use a properly sized hub-centric ring to center the wheel on the hub. Do not rely solely on lug nuts to center the wheel — that causes vibration and uneven stresses.

Thread size (M12 x 1.5)

If the wheel or aftermarket hardware needs a different thread, do NOT force incompatible lug nuts onto studs. Either replace the studs to match the wheel or use wheels that match the factory thread pitch. Verify seat type (conical, ball, etc.) and use matching lug nuts for the wheel seat style.

Offset issues (ET 45)

If you change offset significantly, watch for: brake caliper interference, inner fender or suspension contact, and altered steering geometry. Small offset changes can often be accommodated with spacers or different backspacing, but spacers move the load-bearing surface outward and require hub-centric, high-quality parts and re-torquing procedures.

OEM wheel & tire specs — 2013 Acura RDX

Note: If your vehicle is a special trim or aftermarket-altered, confirm values on the door jamb sticker, owner’s manual, or with the dealer. If any value above differs from what you measure or find in OEM documentation, use the confirmed value in the calculator.

Common mistakes

• Assuming any 5x114.3 wheel will fit without checking center bore and seat type.
• Using lug nuts with the wrong thread pitch or seat style — this can strip studs or damage the wheel.
• Relying on tapered nuts to center a wheel with an oversized bore (not hub-centric).
• Installing wheels with incorrect offset without checking brake and suspension clearance.
• Not retorquing lug nuts after initial installation and first 50–100 miles.
• Using low-quality spacers or adapters that are not rated for the vehicle load and speed.

Roadside & emergency advice

• If you feel vibration or looseness, slow down safely and stop in a safe area. Visually inspect the wheel for loose or missing lug nuts.
• If a wheel is loose, do not continue driving. Re-torque lug nuts to the manufacturer’s specified torque (find this in the owner’s manual or dealer) and check wheel seating. If you cannot reach the required torque or if studs are damaged, call roadside assistance.
• If you must use a compact spare (donut), drive at reduced speeds and for the minimum distance necessary to reach a repair facility; don’t attempt high-speed or long-distance driving on a temporary spare.
• If a wheel physically interferes with brakes or suspension after a swap, stop and remove that wheel immediately — do not try to “force” fit it by grinding or bending components.
• Keep emergency tools: a proper lug socket set, quality torque wrench, and locking lug key (if applicable). You can search for tools here: torque wrenches, lug nut sockets, hub-centric rings (64.1 mm), wheel spacers (5x114.3).

FAQ

Q: Can I fit 17" or 19" wheels on this 2013 RDX?

A: Possible in many cases, but you must confirm overall tire diameter, clearance for brakes and suspension, and speedometer impact. Use the calculator to model different rim diameters and tire sizes, then physically confirm clearances. If you’re unsure, consult the owner’s manual or a professional.

Q: Will wheels from another Acura/Honda with 5x114.3 fit?

A: Matching bolt pattern is only one requirement. Confirm center bore, lug thread size, seat type, offset, and brake clearance before assuming fitment. Do not rely on a vehicle/make name alone — check the specific dimensions.

Q: How do I confirm the bolt pattern on my vehicle?

A: Count the number of studs (5) and confirm the pitch circle diameter (114.3 mm) from the owner’s manual or dealer. If you measure on the vehicle, use a reliable method or parts catalog — if uncertain, get the dealer to confirm.

Q: How should lug nuts be torqued?

A: Follow the vehicle manufacturer’s torque specification in the owner’s manual or service manual. If you don’t have that number, contact a dealer or professional — do not guess torque values.

Q: My aftermarket wheels have a slightly different offset — how much change is safe?

A: Small offset differences are often manageable, but any change can alter track width and clearance. Use the fitment calculator to evaluate changes, and always physically check for rubbing during full-turn steering and compression. If in doubt, consult a wheel/tire specialist.

Safety disclaimer

The information on this page is provided for planning and informational purposes only. Always confirm vehicle-specific specifications from the owner’s manual, door jamb sticker, or an authorized dealer before purchasing or installing wheels, tires, lug nuts, spacers, or adapters. Improper fitment or installation can cause loss of vehicle control, wheel separation, or other serious accidents. If you are not qualified to fit wheels and tires, have a professional technician perform the work and verify torque, centering, and clearance.