Rays-Style Gunmetal Mesh Polished Deep Lip Forged Wheels
Deep Dish · Gunmetal
1975 Lancia Beta Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Lancia Beta wheels? This page gives the 1975 Lancia Beta bolt pattern (4x98), centre bore, factory rim size and the offset range for aftermarket and forged Lancia Beta rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 1975 Lancia Beta uses a 4x98 bolt pattern with a 58.1 mm centre bore and M12x1.25 lug bolts. Factory wheels: 14x5.5J ET35. For aftermarket wheels, 15x7J ET25 sits flush.
Forged wheels for the 1975 Lancia Beta — drilled 4x98 with a 58.1 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
Get a quote for this car
Lancia Beta (1975): 4x98 bolt pattern, 58.1mm center bore, OE 14x5.5J ET35. Forged wheel fitment specs from ANKUSI.
Bolt Pattern4x98
Wheel Bolt/NutM12x1.25 Bolt
Center Bore58.1mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year1975
CategorySedan
✓ Data check: the bolt pattern and center bore on this page match an independent fitment reference. Last reviewed September 18, 2026. How we verify
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | 14x5.5J ET35 |
| Flush Fitment | 15x7J at ET25 offset |
Forged Wheel Designs for the Lancia Beta
Every design below is forged to order, so it can be machined to the Lancia Beta's 4x98 bolt pattern and 58.1 mm center bore, with the width and offset calculated for your setup.
APEX-Style Bright Silver 8 Twin-Spoke Mesh Forged Wheels
Monoblock · Bright Silver
Black / Machined 4-Spoke Forged Wheels
Monoblock · Black Machined
Alfa Romeo OEM-Style Matte Silver 5-Spoke Forged Wheels
Monoblock · Matte Silver
BBS LM-Style Gunmetal Mesh Polished Deep Lip Forged Wheels
Deep Dish · Gunmetal
Rotiform-Style Gloss White 6-Spoke Forged Wheels
Monoblock · Gloss White
BBS-Style Gold Mesh Polished Lip 2-Piece Forged Wheels
2-Piece · Gold
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 Lancia Beta ships from the factory on a 4x98 bolt pattern with a 58.1mm center bore and a 14x5.5J ET35 wheel. Our flush reference for the Lancia Beta is 15x7J ET25.; our maximum aggressive reference is 16x7.5J ET20. — beyond that, expect clearance issues against the fender liner without further modification.
Lancia Beta OE Wheel Specs
The Lancia Beta ships from the factory on 4x98 bolt pattern wheels with a 58.1mm center bore. The stock wheel size is 14x5.5J 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.
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Lancia Beta (1975) we drill the 4x98 pattern and cut the centre bore to 58.1mm 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 — 10,093 vehicles, free to download, CC BY 4.0.
Offset and Backspacing: Factory Wheel vs Options
Backspacing ≈ width/2 + ET/25.4 + 0.5 in. "Inward" means closer to the suspension; "outward" means closer to the fender lip.
| Setup | Size | ET | Backspacing | Inward vs OE | Outward vs OE |
|---|---|---|---|---|---|
| Factory (OE) | 14x5.5J | ET35 | 4.63 in (118 mm) | — | — |
| Flush | 15x7J | ET25 | 4.98 in (127 mm) | +9 mm | +29 mm |
| Maximum | 16x7.5J | ET20 | 5.04 in (128 mm) | +10 mm | +40 mm |
Vehicles With the Same Hub as the Lancia Beta (4x98, 58.1 mm Bore)
In our database, 53 other vehicle entries from 9 makes use exactly the same 4x98 bolt pattern and 58.1 mm center bore. Factory wheels from these cars bolt on and center on the hub without rings; offset and width still have to be checked.
4x98 is used by 1.1% of the vehicle pages in our English fitment guide (74 of 6,503); 73.0% of those also use a 58.1 mm center bore.
Hub-Centric Rings for a 58.1 mm Center Bore
A wheel with a center bore larger than 58.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 60.1 mm | 60.1 → 58.1 mm |
| 63.4 mm | 63.4 → 58.1 mm |
| 64.1 mm | 64.1 → 58.1 mm |
| 65.1 mm | 65.1 → 58.1 mm |
| 73.1 mm | 73.1 → 58.1 mm |
ANKUSI forged wheels are bored to exactly 58.1 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the Lancia Beta use?
The 1975 Lancia Beta uses a 4x98 bolt pattern.
How many lug bolts does the Lancia Beta use?
The Lancia Beta uses a 4-lug bolt pattern (4x98), so you need a 4-lug forged wheel to bolt straight on.
What is the center bore size on the Lancia Beta?
The Lancia Beta's center bore is 58.1mm. If an aftermarket wheel has a larger center bore than this, hub-centric rings are recommended so the wheel centers on the hub itself rather than relying on the lug bolts alone.
What size are the factory (stock) wheels on the Lancia Beta?
Factory wheels on the Lancia Beta are 14x5.5J ET35.
What does a flush wheel fitment look like on the Lancia Beta?
For a flush look with minimal to no rubbing, we recommend 15x7J at ET25 offset as a starting point on a stock or mildly lowered Lancia Beta.
Do I need wheel spacers for my Lancia Beta?
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 Lancia Beta?
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 4.98" 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 Lancia Beta?
The Lancia Beta 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.
Sources and Last Update
Data checked against: avtoreference.com.
This record is part of the open ANKUSI Wheel Fitment Dataset (DOI 10.5281/zenodo.23241521, CC BY 4.0).
Other cars on the same factory size: 14x5.5 wheels · 14 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.