BBS-Style Gold Mesh Polished Lip 2-Piece Forged Wheels
Mazda MX-5 / Cooper Fitment · 4-Lug
2012 Mini Bayswater Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Mini Bayswater wheels? This page gives the 2012 Mini Bayswater bolt pattern (4x100), centre bore, factory rim size and the offset range for aftermarket and forged Mini Bayswater rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2012 Mini Bayswater uses a 4x100 bolt pattern with a 56.5 mm centre bore and M14x1.25 lug bolts. Factory wheels: 17x7J at ET42. For aftermarket wheels, 18x7.5J ET35 sits flush and 18x8J ET32 is the most aggressive fit.
Forged wheels for the 2012 Mini Bayswater — drilled 4x100 with a 56.5 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in about 25 days.
Get a quote for this car
Mini Bayswater (2012): 4x100 bolt pattern, 56.5mm center bore. Factory wheels: 17x7J. Reference fitment ranges.
Bolt Pattern4x100
Wheel Bolt/NutM14x1.25 Bolt
Center Bore56.5mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year2012
CategoryLimited Hatchback
Data check: the bolt pattern and center bore on this page have not yet been confirmed by a second independent source. Measure your hub or ask us before ordering. How we verify
Built to order by ANKUSI — IATF 16949 & ISO 9001 certified forged wheel manufacturer, TÜV/SFI/VIA compliant. See our factory & certifications →
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | 17x7J at ET42 |
| Flush Fitment | 18x7.5J at ET35 offset |
| Maximum Aggressive | 18x8J at ET32 offset |
Forged wheels for the Mini BayswaterMachined to the 4x100 bolt pattern and 56.5 mm bore · 14–24 inch · offset calculated for your car · 3D drawing before production
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
Hot hatches and performance compacts are built around quick direction changes, so rotational mass at the wheel has an outsized effect on how the car actually feels to drive. Forging trims that mass while holding the same strength margin as the factory wheel, which is exactly the trade-off this kind of platform rewards.
The Mini Bayswater runs a 4x100 bolt pattern, 56.5mm center bore, and a 17x7J at ET42, front and rear, wheel from the factory. Our Flush Fitment reference is 18x7.5J ET35, which tucks the tire under the fender lip on a stock-height Mini Bayswater. Our Maximum Aggressive reference is 18x8J ET32 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Mini Bayswater OE Wheel Specs
The 2012 Mini Bayswater (Limited Hatchback) uses a 4x100 bolt pattern with a 56.5mm center bore. Factory wheels are 17x7J at ET42.
Why the factory spec works for most owners:
- Balances ride comfort with everyday fuel efficiency
- A widely used size in this segment, so tire and wheel availability stays strong
- Keeps unsprung weight low for stable, predictable handling
- Maintains clearance for the factory brake calipers and suspension components
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Mini Bayswater (2012) we drill the 4x100 pattern and cut the centre bore to 56.5mm 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.
Flush Fitment
For a flush look with minimal rubbing, 18x7.5J ET35 is the recommended starting point on a stock or mildly lowered Mini Bayswater.
Maximum Aggressive Fitment
18x8J ET32 is a more aggressive reference setup. Beyond this, expect rubbing under compression without fender rolling or camber correction.
Real-World Fitment Notes
Eibach Pro-Kit springs; 18x7.5J ET35 gloss black accented wheels; standard brakes; Michelin Pilot Sport 4 205/45 R18 tires. Note: London-themed design package featuring Kite Blue metallic paint.
5-Tier Configuration Options
A Factory-Style 17x7.0J ET42
Recommended setup: 17x7.0J ET42 | Economy impact: Negligible | Best for: Daily commuting, family use
Appearance: 7/10 | Comfort: 9.5/10 | Install difficulty: ★☆☆☆☆
Estimated cost: $1,200-1,500 (wheels + tires + install)
B Comfortable Upgrade 18x7.5J ET39
Recommended setup: 18x7.5J ET39 | 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 18x7.5J ET35
Recommended setup: 18x7.5J ET35 | 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 18x8.0J ET34
Recommended setup: 18x8.0J ET34 | 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 18x8.0J ET32
Recommended setup: 18x8.0J ET32 | 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 | 17x7.0J ET42 | 18x7.5J ET39 | 18x7.5J ET35 | 18x8.0J ET34 | 18x8.0J ET32 |
| 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 | $1,200-1,500 | $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: 17x7.0J ET42
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: 18x7.5J ET35
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: 18x8.0J ET32
Cost: ~$5,500
Outcome: Maximum visual impact; daily comfort and fuel economy are heavily compromised, physical test fit required before production.
Decision Guide
1
What's your primary use? Daily commuting → Tier A/B. Weekend street driving → Tier B/C. Show or occasional track use → Tier D/E.
2
What's your budget? Under $800 → Tier A. $800-3,400 → Tier B/C. $3,400+ → Tier D/E.
3
How much does fuel economy matter? Very important → Tier A. Somewhat important → Tier B/C. Not a priority → Tier D/E.
4
Still unsure? Tier C (Balanced / Flush Fit) is the default choice for most Mini Bayswater owners.
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE: 17x7J ET42 → ~5.65″ backspacing
- Flush: 18x7.5J ET35 → ~5.63″ backspacing
- Max: 18x8J ET32 → ~5.76″ backspacing
A Note on Clearance
Final clearance depends on the exact tire model, suspension height, brake package, alignment and vehicle tolerances. A physical test fit is recommended before production.
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 Mini spec, or want a wheel built to a custom offset for your Mini Bayswater? 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 Mini Bayswater (2012)
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 4x100 pattern and the 56.5mm 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 — most Mini orders on this platform land somewhere between the 18x7.5J ET35 flush setup and the 18x8J ET32 aggressive setup referenced above.
Designs we already tool for the 4x100 pattern — each one is re-cut to your sizes and offsets:
BBS-Style Gold Mesh Polished Lip 2-Piece Forged Wheels – Mazda MX-5 / Cooper Fitment (4-Lug)
Mini OEM-Style Satin Black Machined Twin 4-Spoke Forged Wheels – Mini Cooper / Clubman Fitment (4-Lug)
BBS LM-Style Gunmetal Mesh Polished Deep Lip Forged Wheels – Mazda MX-5 / Cooper Fitment (4-Lug)
Rotiform-Style Gloss White 6-Spoke Forged Wheels – Mazda MX-5 / Cooper Fitment (4-Lug)Frequently Asked Questions
What bolt pattern (PCD) does the Mini Bayswater use?
The 2012 Mini Bayswater uses a 4x100 bolt pattern.
How many lug bolts does the Mini Bayswater use?
The Mini Bayswater uses a 4-lug bolt pattern (4x100), so you need a 4-lug forged wheel to bolt straight on.
What is the center bore size on the Mini Bayswater?
The Mini Bayswater's center bore is 56.5mm. 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 Mini Bayswater?
Factory wheels on the Mini Bayswater are 17x7J at ET42.
What is the biggest wheel size I can fit on my Mini Bayswater without rubbing?
The most aggressive fitment we recommend without fender work is 18x8J at ET32 offset. Going beyond this typically causes rubbing under compression unless you roll the fenders or add camber correction.
What does a flush wheel fitment look like on the Mini Bayswater?
For a flush look with minimal to no rubbing, we recommend 18x7.5J at ET35 offset as a starting point on a stock or mildly lowered Mini Bayswater.
Do I need wheel spacers for my Mini Bayswater?
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 Mini Bayswater?
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 5.63" 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 Mini Bayswater?
The Mini Bayswater 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.
Vehicles With the Same Hub as the Mini Bayswater (4x100, 56.5 mm Bore)
In our database, 6 other Mini entries use exactly the same 4x100 bolt pattern and 56.5 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.
4x100 is used by 6.9% of the vehicle pages in our English fitment guide (451 of 6,503); 1.6% of those also use a 56.5 mm center bore.
Hub-Centric Rings for a 56.5 mm Center Bore
A wheel with a center bore larger than 56.5 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 57.1 mm | 57.1 → 56.5 mm |
| 60.1 mm | 60.1 → 56.5 mm |
| 63.4 mm | 63.4 → 56.5 mm |
| 64.1 mm | 64.1 → 56.5 mm |
| 73.1 mm | 73.1 → 56.5 mm |
ANKUSI forged wheels are bored to exactly 56.5 mm for this vehicle, so no ring is needed.
Sources and Last Update
Data checked against: avtoreference.com, tirewheelguide.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: 17x7 wheels · 17 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.
Forged Wheel Designs for the Mini Bayswater
Every design below is forged to order, so it can be machined to the Mini Bayswater's 4x100 bolt pattern and 56.5 mm center bore, with the width and offset calculated for your setup.
Mini OEM-Style Satin Black Machined Twin 4-Spoke Forged Wheels
Mini Cooper / Clubman Fitment · 4-Lug
BBS LM-Style Gunmetal Mesh Polished Deep Lip Forged Wheels
Mazda MX-5 / Cooper Fitment · 4-Lug
Rotiform-Style Gloss White 6-Spoke Forged Wheels
Mazda MX-5 / Cooper Fitment · 4-Lug
Mini OEM-Style Gloss Black 12-Spoke Forged Wheels
Mini Cooper / Cooper S Fitment · 4-Lug
Honda Civic EK / Mini Cooper R53 Forged Wheels
Silver Round-Hole Steelie-Style · 4-Lug
Mini OEM-Style Silver Multi-Spoke Forged Wheels
Mini Cooper / Clubman Fitment · 4-Lug
APEX-Style Bright Silver 8 Twin-Spoke Mesh Forged Wheels
Fiat 500 / Mini Cooper Fitment · 4-Lug
Bolt pattern and center bore on this page come from published fitment references and are still awaiting a second independent check. Last reviewed 2026-09-18. Spotted an error? Email info@ankusi.com and we will verify and correct it.