Audi R8 V10 RWD / Spyder (All) (2020) Wheel Fitment
Audi R8 V10 RWD / Spyder (All) (2020): 5x112 bolt pattern, 57.1mm center bore, OE F 20x8.5J ET42 / R 20x11J ET50. Forged wheel fitment specs from ANKUSI.
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Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Flush Fitment | F 20x9J ET35 / R 20x11.5J ET40 |
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.
ANKUSI Engineering Expert Advice
On a supercar, wheel weight is one of the few remaining places to cut rotational mass without touching the powertrain or chassis the factory already optimized. Forging gets there at the same structural margin as the OE wheel, which is exactly the trade a car built around outright performance rewards.
The Audi R8 V10 RWD / Spyder (All) ships from the factory on a 5x112 bolt pattern with a 57.1mm center bore and a F 20x8.5J ET42 / R 20x11J ET50 wheel. Our flush reference for the Audi R8 V10 RWD / Spyder (All) is F 20x9J ET35 / R 20x11.5J ET40.; our maximum aggressive reference is F 21x9.5J ET30 / R 21x12J ET35. — beyond that, expect clearance issues against the fender liner without further modification.
Audi R8 V10 RWD / Spyder (All) OE Wheel Specs
The Audi R8 V10 RWD / Spyder (All) ships from the factory on 5x112 bolt pattern wheels with a 57.1mm center bore. The stock wheel size is F 20x8.5J ET42 / R 20x11J ET50, 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 R8 V10 RWD / Spyder (All) owners run F 20x9J ET35 / R 20x11.5J ET40. 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 F 21x9.5J ET30 / R 21x12J ET35. KW V3 coilovers; 20/21-inch BBS FI-R wheels; Carbon-Ceramic brakes mandatory; Michelin Pilot Sport Cup 2 (F: 245/30 R20, R: 305/30 R20). Note: Rear-wheel drive introduction providing a purist driving experience. Clearance should be verified before ordering, especially on lowered cars.
5-Tier Configuration Options
A – Factory-Style: 20x8.5J ET42
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: $$ (OE replacement)
B – Comfortable Upgrade: F 20x9J ET39 / R 20x11.5J ET45
Recommended setup: Direct bolt-on, factory suspension
Economy impact: Minimal
Best for: Owners who want a mild upgrade with no compromise
Appearance 6/10 | Comfort 9/10 | Install difficulty ★☆☆☆
Estimated cost range: $$ - $$$
C – Balanced / Flush Fit: F 20x9J ET35 / R 20x11.5J ET40
Recommended setup: Flush forged wheels, stock or mild lowering
Economy impact: Slight increase
Best for: Enthusiasts wanting a flush look daily
Appearance 8/10 | Comfort 7/10 | Install difficulty ★★☆☆
Estimated cost range: $$$
D – Aggressive: F 20.5x9.5J ET33 / R 20.5x12J ET38
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: $$$$
E – Max Aggressive: F 21x9.5J ET30 / R 21x12J ET35
Recommended setup: KW V3 coilovers; 20/21-inch BBS FI-R wheels; Carbon-Ceramic brakes mandatory; Michelin Pilot Sport Cup 2 (F: 245/30 R20, R: 305/30 R20). Note: Rear-wheel drive introduction providing a purist driving experience.
Economy impact: Significant increase
Best for: Show builds, weekend cars
Appearance 10/10 | Comfort 3/10 | Install difficulty ★★★★
Estimated cost range: $$$$$
Performance Comparison Matrix
| Wheel Spec | Tier A | Tier B | Tier C | Tier D | Tier E |
|---|---|---|---|---|---|
| Wheel Spec | 20x8.5J ET42 | F 20x9J ET39 / R 20x11.5J ET45 | F 20x9J ET35 / R 20x11.5J ET40 | F 20.5x9.5J ET33 / R 20.5x12J ET38 | F 21x9.5J ET30 / R 21x12J ET35 |
| Economy Impact | None | Minimal | Slight increase | Noticeable increase | Significant increase |
| Appearance | 5/10 | 6/10 | 8/10 | 9/10 | 10/10 |
| Comfort | 10/10 | 9/10 | 7/10 | 5/10 | 3/10 |
| Install Difficulty | ★☆☆☆ | ★☆☆☆ | ★★☆☆ | ★★★☆ | ★★★★ |
| Cost Range | $$ (OE replacement) | $$ - $$$ | $$$ | $$$$ | $$$$$ |
| Best For | Daily drivers, warranty-conscious owners | Owners who want a mild upgrade with no compromise | Enthusiasts wanting a flush look daily | Show-and-drive builds | Show builds, weekend cars |
Real-World Reference Cases
The following builds are compiled from typical ANKUSI customer configurations for this platform and are illustrative, not individually verified real-world builds.
Case 1: Daily Driver (Factory-Style)
Profile: Commuter prioritizing comfort and reliability.
Setup: F 20x8.5J ET42 / R 20x11J ET50 forged wheels, factory suspension.
Cost: $$ (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: F 20x9J ET35 / R 20x11.5J ET40 forged wheels.
Cost: $$$
Outcome: Flush fitment with acceptable ride comfort for daily use.
Case 3: Show Build (Max Aggressive)
Profile: Show-and-shine build prioritizing stance over comfort.
Setup: F 21x9.5J ET30 / R 21x12J ET35 forged wheels. KW V3 coilovers; 20/21-inch BBS FI-R wheels; Carbon-Ceramic brakes mandatory; Michelin Pilot Sport Cup 2 (F: 245/30 R20, R: 305/30 R20). Note: Rear-wheel drive introduction providing a purist driving experience.
Cost: $$$$$
Outcome: Maximum aggressive stance; clearance verified case-by-case.
Decision Guide
Offset & Backspacing Reference
Backspacing is calculated as: wheel width (in) / 2 + offset (mm) / 25.4 + 0.5.
- OE 20x8.5J ET42: backspacing ≈ 6.4"
- Flush 20x9J ET35: backspacing ≈ 6.38"
- Max 21x9.5J ET30: backspacing ≈ 6.43"
Use our offset & backspacing calculator to fine-tune your fitment, or contact ANKUSI for a custom forged wheel quote for your Audi R8 V10 RWD / Spyder (All).
Frequently Asked Questions
What bolt pattern (PCD) does the Audi R8 V10 RWD / Spyder (All) use?
How many lug bolts does the Audi R8 V10 RWD / Spyder (All) use?
What does a flush wheel fitment look like on the Audi R8 V10 RWD / Spyder (All)?
Do I need wheel spacers for my Audi R8 V10 RWD / Spyder (All)?
How do I calculate wheel backspacing for my Audi R8 V10 RWD / Spyder (All)?
What's the difference between wheel offset and backspacing?
Can I run staggered wheels (different sizes front and rear) on my Audi R8 V10 RWD / Spyder (All)?
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.