Audi e-tron Sportback [UK] (2021) Wheel Fitment

Audi e-tron Sportback [UK] (2021): 5x112 bolt pattern, 66.5mm center bore, OE 20x9J ET35. Forged wheel fitment specs from ANKUSI.

Bolt Pattern5x112
Wheel Bolt/NutM14x1.5 Bolt
Center Bore66.5mm
Wheel Load Rating900–1250 kg/wheel (SUV segment reference)
Year2021
Category5-Lug Large Sedan/SUV

Verified by ANKUSI's Engineering Team — IATF 16949 & ISO 9001 certified forged wheel manufacturer, TÜV/SFI/VIA compliant. See our factory & certifications →

Wheel Size & Offset at a Glance

Audi e-tron Sportback [UK] wheel size and offset comparison by configuration
ConfigurationWheel Size & Offset
Flush Fitment21x9.5J at ET25 offset

How to Read Wheel Offset & Measurements

Use these two references before ordering: the left diagram shows where each spec (PCD, center bore, offset, width and diameter) is measured on the wheel; the right diagram shows how positive, zero and negative offset shift the wheel face relative to the hub centerline.

Diagram showing wheel measurement points: centerline, center bore diameter, PCD, offset, rim width and diameter
Centerline, center bore, PCD, offset, width & diameter
Diagram comparing positive, zero, and negative wheel offset relative to the wheel centerline
Positive vs. zero vs. negative offset

ANKUSI Engineering Expert Advice

Because an SUV's center of gravity is already higher than a sedan's, anything added at the corners — including wheel weight — has an outsized effect on handling balance. A forged wheel lets us hit the visual stance owners want without adding the rotational mass a cast wheel of the same strength would carry.

The Audi e-tron Sportback [UK] ships from the factory on a 5x112 bolt pattern with a 66.5mm center bore and a 20x9J ET35 wheel. Our flush reference for the Audi e-tron Sportback [UK] is 21x9.5J ET25.; our maximum aggressive reference is 22x10J ET20. — beyond that, expect clearance issues against the fender liner without further modification.

Audi e-tron Sportback [UK] OE Wheel Specs

The Audi e-tron Sportback [UK] ships from the factory on 5x112 bolt pattern wheels with a 66.5mm center bore. The stock wheel size is 20x9J ET35, offering a balanced ride that suits most owners without any rubbing or clearance concerns.

Why the factory spec works for most owners:

  • Balances ride comfort with steering response and highway efficiency.
  • Wide tire and wheel availability at the factory diameter keeps replacement costs low.
  • Lower unsprung weight than larger aftermarket wheels helps ride quality and acceleration.
  • Guaranteed clearance against brake calipers and suspension components.

Flush Fitment

For a flush look without any body modification, most Audi e-tron Sportback [UK] owners run 21x9.5J ET25. This setup tucks the wheel face closer to the fender lip while staying within safe load and clearance limits.

Maximum Aggressive Fitment

Owners chasing a more aggressive stance push to 22x10J ET20. Air suspension lowering links; 21x9.5J ET25 BBS SR wheels; regenerative brakes; Hankook iON evo EV tires 265/45 R21. Note: Coupe-roofline electric SUV variant. Clearance should be verified before ordering, especially on lowered cars.

5-Tier Configuration Options

A – Factory-Style: 20x9J ET35

Recommended setup: Factory-matched forged replacement

Economy impact: None

Best for: Daily drivers, warranty-conscious owners

Appearance 5/10 | Comfort 10/10 | Install difficulty ★☆☆☆

Estimated cost range: $$ (OE replacement)

B – Comfortable Upgrade: 20.5x9.5J ET30

Recommended setup: Direct bolt-on, factory suspension

Economy impact: Minimal

Best for: Owners who want a mild upgrade with no compromise

Appearance 6/10 | Comfort 9/10 | Install difficulty ★☆☆☆

Estimated cost range: $$ - $$$

C – Balanced / Flush Fit: 21x9.5J ET25

Recommended setup: Flush forged wheels, stock or mild lowering

Economy impact: Slight increase

Best for: Enthusiasts wanting a flush look daily

Appearance 8/10 | Comfort 7/10 | Install difficulty ★★☆☆

Estimated cost range: $$$

D – Aggressive: 21.5x10J ET23

Recommended setup: Wider forged wheels, coilovers or lowering springs

Economy impact: Noticeable increase

Best for: Show-and-drive builds

Appearance 9/10 | Comfort 5/10 | Install difficulty ★★★☆

Estimated cost range: $$$$

E – Max Aggressive: 22x10J ET20

Recommended setup: Air suspension lowering links; 21x9.5J ET25 BBS SR wheels; regenerative brakes; Hankook iON evo EV tires 265/45 R21. Note: Coupe-roofline electric SUV variant.

Economy impact: Significant increase

Best for: Show builds, weekend cars

Appearance 10/10 | Comfort 3/10 | Install difficulty ★★★★

Estimated cost range: $$$$$

Performance Comparison Matrix

Wheel SpecTier ATier BTier CTier DTier E
Wheel Spec20x9J ET3520.5x9.5J ET3021x9.5J ET2521.5x10J ET2322x10J ET20
Economy ImpactNoneMinimalSlight increaseNoticeable increaseSignificant increase
Appearance5/106/108/109/1010/10
Comfort10/109/107/105/103/10
Install Difficulty★☆☆☆★☆☆☆★★☆☆★★★☆★★★★
Cost Range$$ (OE replacement)$$ - $$$$$$$$$$$$$$$
Best ForDaily drivers, warranty-conscious ownersOwners who want a mild upgrade with no compromiseEnthusiasts wanting a flush look dailyShow-and-drive buildsShow builds, weekend cars

Real-World Reference Cases

The following builds are compiled from typical ANKUSI customer configurations for this platform and are illustrative, not individually verified real-world builds.

Case 1: Daily Driver (Factory-Style)

Profile: Commuter prioritizing comfort and reliability.

Setup: 20x9J ET35 forged wheels, factory suspension.

Cost: $$ (OE replacement)

Outcome: No clearance issues, factory ride quality retained.

Case 2: Balanced Enthusiast (Balanced / Flush Fit)

Profile: Weekend driver wanting a flush stance without sacrificing daily usability.

Setup: 21x9.5J ET25 forged wheels, mild lowering springs.

Cost: $$$

Outcome: Flush fitment with acceptable ride comfort for daily use.

Case 3: Show Build (Max Aggressive)

Profile: Show-and-shine build prioritizing stance over comfort.

Setup: 22x10J ET20 forged wheels. Air suspension lowering links; 21x9.5J ET25 BBS SR wheels; regenerative brakes; Hankook iON evo EV tires 265/45 R21. Note: Coupe-roofline electric SUV variant.

Cost: $$$$$

Outcome: Maximum aggressive stance; clearance verified case-by-case.

Decision Guide

1. What is this car mainly used for? Daily driving favors Tier A or B; weekend/show use favors Tier D or E.
2. What is your budget? Tiers A-B keep cost low; Tiers D-E cost significantly more in wheels, tires, and possible suspension work.
3. Is fuel economy and ride comfort a priority? If yes, stay at Tier A or B; heavier, wider wheels at Tier D-E reduce efficiency and comfort.
4. Still unsure? Tier C (Balanced / Flush Fit) is the safe default for most Audi e-tron Sportback [UK] owners.

Offset & Backspacing Reference

Backspacing is calculated as: wheel width (in) / 2 + offset (mm) / 25.4 + 0.5.

  • OE 20x9J ET35: backspacing ≈ 6.38"
  • Flush 21x9.5J ET25: backspacing ≈ 6.23"
  • Max 22x10J ET20: backspacing ≈ 6.29"

Use our offset & backspacing calculator to fine-tune your fitment, or contact ANKUSI for a custom forged wheel quote for your Audi e-tron Sportback [UK].

Frequently Asked Questions

What bolt pattern (PCD) does the Audi e-tron Sportback [UK] use?
The 2021 Audi e-tron Sportback [UK] uses a 5x112 bolt pattern.
How many lug bolts does the Audi e-tron Sportback [UK] use?
The Audi e-tron Sportback [UK] uses a 5-lug bolt pattern (5x112), so you need a 5-lug forged wheel to bolt straight on.
What does a flush wheel fitment look like on the Audi e-tron Sportback [UK]?
For a flush look with minimal to no rubbing, we recommend 21x9.5J at ET25 offset as a starting point on a stock or mildly lowered Audi e-tron Sportback [UK].
Do I need wheel spacers for my Audi e-tron Sportback [UK]?
No. ANKUSI forges each wheel to your exact target offset, including the flush or max specs above, so you get the correct fitment without stacking spacers. Spacers are typically only used to push out an existing OE-offset wheel without replacing it, which isn't necessary when you're ordering a custom-offset forged wheel.
How do I calculate wheel backspacing for my Audi e-tron Sportback [UK]?
Backspacing (in inches) = wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance). For example, the flush spec above works out to roughly 6.23" of backspacing.
What's the difference between wheel offset and backspacing?
Offset is the distance in millimeters from the wheel's true centerline to its mounting face (positive offset pulls the wheel in, negative pushes it out). Backspacing is the distance in inches from the mounting face to the back edge of the wheel barrel. They describe the same fitment from two different reference points, which is why ANKUSI lists both above — some shops and tuning guides quote offset, others quote backspacing.
Can I run staggered wheels (different sizes front and rear) on my Audi e-tron Sportback [UK]?
The Audi e-tron Sportback [UK] runs the same wheel size front and rear from the factory, so staggered fitment is not required. ANKUSI can still forge a staggered set (wider rear) on request if you want a more aggressive stance.

Wheel Installation Reference: Torque, Thread & TPMS

Thread & Fastener: M14x1.5, ball-seat lug bolt (13mm radius).

Factory Torque Spec: 120 Nm (89 ft-lb). Shared VW/Audi Group ball-seat bolt spec used across most 5x112 Audi models.

TPMS: TPMS (Tire Pressure Monitoring System) has been federally mandated on all new light vehicles sold in the US since the 2008 model year. If your wheels use OE-style sensors, have them transferred or cloned to the new wheels at installation.

Tire Pressure: Always set tire pressure to the value on your vehicle's tire placard (driver's doorjamb or glovebox), not the max PSI printed on the tire sidewall — this is trim- and tire-size-specific and stays the same reference point when you switch to a different wheel and tire combination.

Reference data compiled from published OEM service specifications and cross-checked against independent repair sources; always confirm against your owner's manual or door-jamb placard before installation.

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