Alfa Romeo 155 (1993) Wheel Fitment
Alfa Romeo 155 (1993): 4x98 bolt pattern, 58.1mm center bore. Factory wheels: 14x5.5J F/R. Reference fitment ranges.
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Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | 14x5.5J F/R |
| Flush Fitment | 16x7.5J at ET30 offset |
| Maximum Aggressive | 17x8.0J 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.
ANKUSI Engineering Expert Advice
A sedan's wheel spec is a balance point the factory tuned between ride comfort, steering feel, and everyday durability. Forging lets us hold that same structural margin while cutting rotational mass, which is where most of the real-world benefit — quicker steering response, marginally better ride — actually comes from.
The Alfa Romeo 155 runs a 4x98 bolt pattern, 58.1mm center bore, and a 14x5.5J, front and rear, wheel from the factory. Our Flush Fitment reference is 16x7.5J ET30, which tucks the tire under the fender lip on a stock-height Alfa Romeo 155. Our Maximum Aggressive reference is 17x8.0J ET25 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Alfa Romeo 155 OE Wheel Specs
The 1993 Alfa Romeo 155 (Sedan) uses a 4x98 bolt pattern with a 58.1mm center bore. Factory wheels are 14x5.5J F/R.
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
Flush Fitment
For a flush look with minimal rubbing, F/R 16x7.5J ET30 is the recommended starting point on a stock or mildly lowered Alfa Romeo 155.
Maximum Aggressive Fitment
F/R 17x8.0J ET25 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 14x5.5J ET37
Recommended setup: 14x5.5J ET37 | 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 16x6.5J ET34
Recommended setup: 16x6.5J ET34 | 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 16x7.5J ET30
Recommended setup: 16x7.5J ET30 | 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 17x8.0J ET28
Recommended setup: 17x8.0J ET28 | 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 17x8.0J ET25
Recommended setup: 17x8.0J ET25 | 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 | 14x5.5J ET37 | 16x6.5J ET34 | 16x7.5J ET30 | 17x8.0J ET28 | 17x8.0J ET25 |
| 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: 14x5.5J ET37
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: 16x7.5J ET30
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: 17x8.0J ET25
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: 14x5.5J ET37.5 → ~4.73″ backspacing
- Flush: 16x7.5J ET30 → ~5.43″ backspacing
- Max: 17x8.0J ET25 → ~5.48″ 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 Alfa Romeo spec, or want a wheel built to a custom offset for your Alfa Romeo 155? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.