Ferrari 12Cilindri Spider (2025) Bolt Pattern & Wheel Fitment
Ferrari 12Cilindri Spider (2025): 5x114.3 bolt pattern, 67.1mm center bore. Factory wheels: F: 21x8.5J R: 21x11.5J. Reference fitment ranges.
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Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | F: 21x8.5J R: 21x11.5J |
| Flush Fitment | F 21x9.5J ET35 / R 21x12.5J ET40 |
| Maximum Aggressive | F 22x10.0J ET30 / R 22x13.0J ET35 |
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
With less structural stiffness from the missing roof, a convertible's suspension tuning leans more heavily on unsprung mass control. Forged construction keeps wheel weight down at the same strength rating, which is one less variable working against the Ferrari 12Cilindri Spider's chassis.
The Ferrari 12Cilindri Spider runs a 5x114.3 bolt pattern, 67.1mm center bore, and a F: 21x8.5J wheel from the factory. Our Flush Fitment reference is F 21x9.5J ET35 / R 21x12.5J ET40, which tucks the tire under the fender lip on a stock-height Ferrari 12Cilindri Spider. Our Maximum Aggressive reference is F 22x10.0J ET30 / R 22x13.0J ET35 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Ferrari 12Cilindri Spider OE Wheel Specs
The 2025 Ferrari 12Cilindri Spider (Convertible) uses a 5x114.3 bolt pattern with a 67.1mm center bore. Factory wheels are F: 21x8.5J R: 21x11.5J.
Why the factory spec works for most owners:
- Keeps the factory ride quality and noise levels intact
- A common fitment for this class, so replacement tires are easy to source
- Preserves clearance around the OE brakes and suspension geometry
- Delivers predictable, easy-to-live-with handling for daily use
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Ferrari 12Cilindri Spider (2025) we drill the 5x114.3 pattern and cut the centre bore to 67.1mm on our own CNC line, so the wheel hub-centres on the car with no spacer rings, in whatever diameter, width and offset you specify.
Converting these ET figures to backspacing? Use the wheel offset and backspacing calculator.
The figures on this page are part of our open wheel fitment dataset — 6,436 vehicles, free to download, CC BY 4.0.
Flush Fitment
For a flush look with minimal rubbing, F 21x9.5J ET35 / R 21x12.5J ET40 is the recommended starting point on a stock or mildly lowered Ferrari 12Cilindri Spider.
Maximum Aggressive Fitment
F 22x10.0J ET30 / R 22x13.0J ET35 is a more aggressive reference setup. Beyond this, expect rubbing under compression without fender rolling or camber correction.
5-Tier Configuration Options
A Factory-Style F 21x8.5J ET45 / R 21x11.5J ET50
Recommended setup: F 21x8.5J ET45 / R 21x11.5J ET50 | Economy impact: Negligible | Best for: Daily commuting, family use
Appearance: 7/10 | Comfort: 9.5/10 | Install difficulty: ★☆☆☆☆
Estimated cost: $450-800 (wheels + tires + install)
B Comfortable Upgrade F 21x9.0J ET40 / R 21x12.0J ET45
Recommended setup: F 21x9.0J ET40 / R 21x12.0J ET45 | Economy impact: -2 to -4% | Best for: Daily / street
Appearance: 8/10 | Comfort: 9/10 | Install difficulty: ★☆☆☆☆
Estimated cost: $1,950-2,550 (wheels + tires + install)
C Balanced / Flush Fit F 21x9.5J ET35 / R 21x12.5J ET40
Recommended setup: F 21x9.5J ET35 / R 21x12.5J ET40 | Economy impact: -4 to -6% | Best for: Street
Appearance: 8.5/10 | Comfort: 8/10 | Install difficulty: ★★☆☆☆
Estimated cost: $2,600-3,400 (wheels + tires + install)
D Aggressive F 22x10.0J ET33 / R 22x13.0J ET38
Recommended setup: F 22x10.0J ET33 / R 22x13.0J ET38 | Economy impact: -6 to -9% | Best for: Show / occasional track
Appearance: 9/10 | Comfort: 6.5/10 | Install difficulty: ★★★☆☆
Estimated cost: $3,900-5,000 (wheels + tires + install)
E Max Aggressive F 22x10.0J ET30 / R 22x13.0J ET35
Recommended setup: F 22x10.0J ET30 / R 22x13.0J ET35 | Economy impact: -8 to -12% | Best for: Show only
Appearance: 9.5/10 | Comfort: 4/10 | Install difficulty: ★★★★☆
Estimated cost: $4,800-6,200+ (wheels + tires + install)
Performance Comparison Matrix
| Metric | Tier A | Tier B | Tier C | Tier D | Tier E |
|---|---|---|---|---|---|
| Wheel Spec | F 21x8.5J ET45 / R 21x11.5J ET50 | F 21x9.0J ET40 / R 21x12.0J ET45 | F 21x9.5J ET35 / R 21x12.5J ET40 | F 22x10.0J ET33 / R 22x13.0J ET38 | F 22x10.0J ET30 / R 22x13.0J ET35 |
| Economy Impact | Negligible | -2 to -4% | -4 to -6% | -6 to -9% | -8 to -12% |
| Appearance | 7/10 | 8/10 | 8.5/10 | 9/10 | 9.5/10 |
| Comfort | 9.5/10 | 9/10 | 8/10 | 6.5/10 | 4/10 |
| Install Difficulty | ★☆☆☆☆ | ★☆☆☆☆ | ★★☆☆☆ | ★★★☆☆ | ★★★★☆ |
| Cost Range | $450-800 | $1,950-2,550 | $2,600-3,400 | $3,900-5,000 | $4,800-6,200+ |
| Best For | Daily commuting, family use | Daily / street | Street | Show / occasional track | Show only |
Real-World Reference Cases
The examples below are compiled from typical ANKUSI customer configurations and are labeled as reference cases, not individually verified real-world builds.
Case 1: Daily Driver (Factory-Style)
Profile: Everyday driving, prioritizes comfort and low running cost.
Setup: F 21x8.5J ET45 / R 21x11.5J ET50
Cost: ~$620
Outcome: Minimal visual change, ride and fuel economy essentially unaffected.
Case 2: Balanced Enthusiast (Balanced / Flush Fit)
Profile: Wants a sportier stance without sacrificing daily usability.
Setup: F 21x9.5J ET35 / R 21x12.5J ET40
Cost: ~$3,000
Outcome: Noticeable visual upgrade, fuel economy drop within the expected range.
Case 3: Show Build (Max Aggressive)
Profile: Built primarily for shows or occasional track/show use.
Setup: F 22x10.0J ET30 / R 22x13.0J ET35
Cost: ~$5,500
Outcome: Maximum visual impact; daily comfort and fuel economy are heavily compromised, physical test fit required before production.
Decision Guide
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE: F 21x8.5J ET45 → ~6.52″ F backspacing, R 21x11.5J ET50 → ~8.22″ R backspacing
- Flush: F 21x9.5J ET35 → ~6.63″ F backspacing, R 21x12.5J ET40 → ~8.32″ R backspacing
- Max: F 22x10.0J ET30 → ~6.68″ F backspacing, R 22x13.0J ET35 → ~8.38″ R backspacing
Want to check a different width or offset before you order? Use our Offset & Backspacing Calculator to solve the numbers yourself, or looking for your exact Ferrari spec, or want a wheel built to a custom offset for your Ferrari 12Cilindri Spider? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.
Custom Forged Wheels for the Ferrari 12Cilindri Spider (2025)
Everything above is reference data. If you want wheels actually built to it, that is what ANKUSI does: we are a forged wheel factory in Guangzhou, China, IATF 16949 and ISO 9001 certified, forging on our own 10,000-ton press and producing over 120,000 wheels a year. Forging blank, CNC machining, finishing, coating and inspection all happen in the same building — nothing is subcontracted and nothing is relabelled from another manufacturer.
Every set is cut to order, so the 5x114.3 pattern and the 67.1mm centre bore are machined for this car specifically rather than shimmed with adaptor rings. Diameter, width, offset, concavity, monoblock or multi-piece construction and the finish are all yours to choose.
Designs we already tool for the 5x114.3 pattern — each one is re-cut to your sizes and offsets:
Ferrari Matte Black 14-Spoke Forged Wheels – Ferrari Purosangue Handling Speciale Fitment (20-24in, 5×114.3)
Xiaomi Matte Black 5-Spoke Y-Design Forged Wheels – Tesla Model Y Performance Fitment (19-21in, 5×114.3)
Lotus Brushed Gunmetal 3-Spoke Mesh Forged Wheels – Lotus Emira 420 Sport Fitment (20-22in, 5×114.3)
Clear Black Tint Mesh Multi-Spoke Forged Wheels – Tesla Model Y Performance Fitment (19-21in, 5×114.3)