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2008 Mansory Le Mansory Convertible (Bentley GTC) Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Mansory Le Mansory Convertible (Bentley GTC) wheels? This page gives the 2008 Mansory Le Mansory Convertible (Bentley GTC) bolt pattern (5x112), centre bore, factory rim size and the offset range for aftermarket and forged Mansory Le Mansory Convertible (Bentley GTC) rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2008 Mansory Le Mansory Convertible (Bentley GTC) uses a 5x112 bolt pattern with a 57.1 mm centre bore and M14x1.5 lug bolts. Factory wheels: 21x10J ET41. For aftermarket wheels, 21x10.5J ET35 sits flush.
Forged wheels for the 2008 Mansory Le Mansory Convertible (Bentley GTC) — drilled 5x112 with a 57.1 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
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Mansory Le Mansory Convertible (Bentley GTC) (2008): 5x112 bolt pattern, 57.1mm center bore, OE 21x10J ET41. Forged wheel fitment specs from ANKUSI.
Bolt Pattern5x112
Wheel Bolt/NutM14x1.5 Bolt
Center Bore57.1mm
Wheel Load Rating700–850 kg/wheel (Performance / Sports Car segment reference)
Caliper TypeBrembo multi-piston fixed caliper, front & rear (OEM, standard across Bentley Continental/Flying Spur lineup)
Year2008
Category5-Lug Performance / Tuner
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
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | 21x10J ET41 |
| Flush Fitment | 21x10.5J at ET35 offset |
Forged Wheel Designs for the Mansory Le Mansory Convertible (Bentley GTC)
Every design below is forged to order, so it can be machined to the Mansory Le Mansory Convertible (Bentley GTC)'s 5x112 bolt pattern and 57.1 mm center bore, with the width and offset calculated for your setup.
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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
Convertibles lose some of the structural rigidity a fixed roof provides, which means the suspension and wheels end up doing more of the work to keep the chassis composed. A forged wheel keeps unsprung mass down without sacrificing the strength margin the factory built in — useful on a platform that's already managing extra flex.
The Mansory Le Mansory Convertible (Bentley GTC) ships from the factory on a 5x112 bolt pattern with a 57.1mm center bore and a 21x10J ET41 wheel. Our flush reference for the Mansory Le Mansory Convertible (Bentley GTC) is 21x10.5J ET35.; our maximum aggressive reference is 22x10.5J ET30. — beyond that, expect clearance issues against the fender liner without further modification.
Mansory Le Mansory Convertible (Bentley GTC) OE Wheel Specs
The Mansory Le Mansory Convertible (Bentley GTC) ships from the factory on 5x112 bolt pattern wheels with a 57.1mm center bore. The stock wheel size is 21x10J ET41, 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 Mansory Le Mansory Convertible (Bentley GTC) (2008) we drill the 5x112 pattern and cut the centre bore to 57.1mm 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) | 21x10J | ET41 | 7.11 in (181 mm) | — | — |
| Flush | 21x10.5J | ET35 | 7.13 in (181 mm) | 0 mm | +12 mm |
| Maximum | 22x10.5J | ET30 | 6.93 in (176 mm) | −5 mm | +17 mm |
Vehicles With the Same Hub as the Mansory Le Mansory Convertible (Bentley GTC) (5x112, 57.1 mm Bore)
In our database, 407 other vehicle entries from 18 makes use exactly the same 5x112 bolt pattern and 57.1 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.
5x112 is used by 21.6% of the vehicle pages in our English fitment guide (1,407 of 6,503); 29.0% of those also use a 57.1 mm center bore.
Hub-Centric Rings for a 57.1 mm Center Bore
A wheel with a center bore larger than 57.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 60.1 mm | 60.1 → 57.1 mm |
| 63.4 mm | 63.4 → 57.1 mm |
| 64.1 mm | 64.1 → 57.1 mm |
| 65.1 mm | 65.1 → 57.1 mm |
| 73.1 mm | 73.1 → 57.1 mm |
ANKUSI forged wheels are bored to exactly 57.1 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the Mansory Le Mansory Convertible (Bentley GTC) use?
The 2008 Mansory Le Mansory Convertible (Bentley GTC) uses a 5x112 bolt pattern.
How many lug bolts does the Mansory Le Mansory Convertible (Bentley GTC) use?
The Mansory Le Mansory Convertible (Bentley GTC) uses a 5-lug bolt pattern (5x112), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the Mansory Le Mansory Convertible (Bentley GTC)?
The Mansory Le Mansory Convertible (Bentley GTC)'s center bore is 57.1mm. 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 Mansory Le Mansory Convertible (Bentley GTC)?
Factory wheels on the Mansory Le Mansory Convertible (Bentley GTC) are 21x10J ET41.
What does a flush wheel fitment look like on the Mansory Le Mansory Convertible (Bentley GTC)?
For a flush look with minimal to no rubbing, we recommend 21x10.5J at ET35 offset as a starting point on a stock or mildly lowered Mansory Le Mansory Convertible (Bentley GTC).
Do I need wheel spacers for my Mansory Le Mansory Convertible (Bentley GTC)?
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 Mansory Le Mansory Convertible (Bentley GTC)?
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 7.13" 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 Mansory Le Mansory Convertible (Bentley GTC)?
The Mansory Le Mansory Convertible (Bentley GTC) 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, 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: 21x10 wheels · 21 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.
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.