OEM wheel and tire fitment specs for the 2021 Acura NSX, including bolt pattern (PCD), center bore diameter, thread size, rim diameter, rim width, wheel offset, and backspacing.
Recorded OEM specifications for the 2021 Acura NSX, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
Thread-only product links are shopping examples, not verified fits. Seat style is not confirmed here. As an Amazon Associate we earn from qualifying purchases.
Donor vehicles with overlapping OEM specs
These are vehicle-year records whose recorded OEM ranges overlap this 2021 Acura NSX. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 9 donor years. Listed 9 eligible overlaps (not all evaluated years are compatible). Showing all listed.
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Recorded OEM bolt pattern, center bore, and width/offset ranges overlap. This is not a guarantee that every wheel from the donor year fits this vehicle.
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Center-bore records disagree (donor year-level hub 70.3 mm vs trim range 70.1–70.1 mm). Unqualified overlap is not claimed until the conflict is resolved.
Compare a donor vehicle or custom wheel against this 2021 Acura NSX. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.
Compare
Compare wheel compatibility between two vehicles
Wheels from (donor vehicle)
Selected Car:
Custom wheel size (optional)
Tip: change values here to simulate custom wheels and immediately see the impact in the comparison below.
Custom tire size (optional)
Installed on (your vehicle)
Selected Car:
2021 Acura NSX
Compare Rims
Specification
Wheels from
Installed on
Result (Click it)
Bolt Pattern
The total number of bolt holes and the diameter of the circle they form.
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5x120
Center Bore
The hole in the center of the wheel that fits over the vehicle’s hub.
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70.1 mm
Thread Size
The size and spacing of the threads on the bolts or nuts that hold the wheel in place.
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M14 x 1.5
Rim Diameter
The wheel diameter in inches that determines which tire sizes will fit.
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19"
Rim Width
The distance between the inner edges of the wheel is measured in inches.
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8.5"
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
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55 mm
Backspacing
Shows how much space the wheel takes up toward the inside of the vehicle.
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-
Wheel Fasteners
The type of hardware used to secure the wheel to the vehicle.
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-
Compare Tires
Specification
Wheels from
Installed on
Result (Click it)
Section Width
The width of the tire from sidewall to sidewall, measured in millimeters.
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-
Aspect Ratio
The height of the tire’s sidewall expressed as a percentage of its width.
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-
Diameter
The wheel diameter for which the tire is designed to fit.
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-
Tire Pressure
The recommended air pressure for safe and efficient driving.
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-
Overall Diameter
The total height of the tire and wheel combined affects clearance and speedometer accuracy.
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-
Wheel Fitment Parts for the 2021 Acura NSX
Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.
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2021 Acura NSX wheel fitment and interchange guide
tl;dr
The known OEM spec for this NSX includes 5x120, 70.1 mm center bore, M14x1.5 threads, and a listed wheel and tire of 19x8.5 ET55 with 245/35R19. Other factory sizes may exist on the rear or with packages. Use the on-page calculator to compare donor wheels and custom sizes before you buy. Keep clearances safe, stay hub centric, and match lug hardware to the wheel seat style.
Recommendation
Start from the known data, then validate the rest on the vehicle and with OEM sources.
Use the calculator: set Installed on to 2021 Acura NSX. Enter the known baseline.
If your NSX has staggered wheels, confirm the other axle. Check the door placard, owner’s manual, or dealership parts catalog.
Compare donor wheels by bolt pattern first. Only 5x120 will bolt up without adapters.
Match or exceed brake and suspension clearances. Watch inner clearance and outer poke in the calculator.
If using aftermarket wheels with larger center bore, plan hub centric rings to 70.1 mm ID.
Use M14x1.5 lug nuts or bolts as applicable, with the correct seat type for the wheel.
Reuse or program TPMS sensors compatible with your NSX.
Known OEM fitment
These values are confirmed for at least one 2021 Acura NSX configuration. Other trims or axles may differ. Do not assume both axles match without checking.
Bolt pattern
5x120
Center bore
70.1 mm
Thread size
M14 x 1.5
Wheel diameter
19 in
Wheel width
8.5 in
Offset
ET55
Backspacing
6.42 in
Tire size
245/35R19
If your car shows different sizes on the tire placard, use those as your baseline in the calculator.
Impact
Changing width, offset, or tire size alters more than looks. Here is what changes and how to read it in the calculator.
Clearance to strut and liner: Inner clearance decreases as offset increases or width grows inward. Confirm you do not go negative.
Fender poke: Outer position increases as offset decreases or width grows outward. Make sure the tire does not contact the fender at full lock or compression.
Steering feel and scrub: Large offset shifts can change steering effort and feedback. Keep changes modest unless you have measured room.
Ride height and speedometer: Tire overall diameter affects both. The calculator updates tire diameter when you change rim diameter. Aim for a small difference to maintain ride and readings.
Unsprung mass: Bigger wheels and tires often weigh more. That can affect braking and ride quality.
Risks
Brake caliper interference: The NSX has large calipers. Spoke shape and barrel profile matter. Do a template test or trial fit before mounting tires.
Incorrect seat type: Using conical hardware on a ball seat wheel, or vice versa, can loosen under load.
Poor centering: Skipping hub centric rings on larger bore wheels may cause vibration.
Thread engagement: Short shank nuts or thick wheel pads reduce engagement. Verify safe engagement per OEM guidance.
TPMS issues: Wrong sensors or missed relearn can trigger warnings.
Rubbing under load: What looks fine static can rub over bumps or at full lock. Check with suspension compressed and wheels turned.
Next actions
Confirm your current OEM sizes on the door placard and in the owner’s manual.
Open the calculator on wheelinterchange.com. Set Installed on to 2021 Acura NSX.
Enter the known baseline or your placard sizes. Save that as stock.
Test donor wheels: match 5x120, then adjust width and offset to keep safe clearances.
If changing rim diameter, use the calculator to pick a tire that keeps overall diameter close to stock.
Select hardware: M14x1.5 lugs with the correct seat. Add 70.1 mm hub centric rings if your wheel bore is larger.
Plan a test fit. Spin the wheel by hand, turn lock to lock, compress suspension if possible.
Torque to the factory spec from the service manual. Recheck torque after 50 to 100 miles.
Gotchas and quick tips
Staggered setups are common. Verify both axles. Do not mirror front specs to the rear without checking.
Aftermarket wheel load rating should meet or exceed OEM. Check the rating stamp.
Valve stems and TPMS: Use compatible clamp in stems if required by your sensor type.
Spacers change effective offset and hardware needs. Use hub centric spacers with matching 70.1 mm bore, and correct extended hardware if specified by the spacer manufacturer.
How to use the calculator effectively
This is the workflow I use in the shop for quick, safe checks.
Set Installed on to 2021 Acura NSX. Enter the known wheel and tire as stock.
Under Wheels from, pick your donor vehicle or enter Custom wheel size to test fit ideas.
Adjust width, offset, and diameter one variable at a time. Watch inner clearance and outer poke readouts.
Change Custom tire size to keep overall diameter close. The calculator shows tire diameter change and speed difference.
Document a setup that maintains clearance. Then verify physically before mounting tires.
A normal wheel spacer does not change bolt pattern. Hub rings cannot enlarge a wheel bore that is smaller than the hub. Brake clearance and tire package fitment still require vehicle-specific checks when not confirmed in the dataset.
