2008 Proton GEN-2 Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Proton GEN-2 wheels? This page gives the 2008 Proton GEN-2 bolt pattern (4x114.3), centre bore, factory rim size and the offset range for aftermarket and forged Proton GEN-2 rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2008 Proton GEN-2 uses a 4x114.3 bolt pattern with a 67.1 mm centre bore. Factory wheels: 15x6J ET46. For aftermarket wheels, 16x7J ET38 sits flush.
Forged wheels for the 2008 Proton GEN-2 — drilled 4x114.3 with a 67.1 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
Proton GEN-2 (2008): 4x114.3 bolt pattern, 67.1mm center bore, OE 15x6J ET46. Forged wheel fitment specs from ANKUSI.
Bolt Pattern4x114.3
Center Bore67.1mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year2008
CategoryHatchback
✓ 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) | 15x6J ET46 |
| Flush Fitment | 16x7J at ET38 offset |
Forged Wheel Designs for the Proton GEN-2
Every design below is forged to order, so it can be machined to the Proton GEN-2's 4x114.3 bolt pattern and 67.1 mm center bore, with the width and offset calculated for your setup.
Rotiform-Style Gloss White 6-Spoke Forged Wheels
Monoblock · Gloss White
BBS LM-Style Gunmetal Mesh Polished Deep Lip Forged Wheels
Deep Dish · Gunmetal
BBS-Style Gold Mesh Polished Lip Forged Wheels
Monoblock · Gold
BBS-Style Gold Mesh Polished Lip 2-Piece Forged Wheels
2-Piece · Gold
OZ Racing-Style Gloss White 15-Spoke Forged Wheels
Monoblock · Gloss White
Bronze Gold Cross-Spoke Forged Wheels
Monoblock · Bronze Gold
Rays-Style Gunmetal Mesh Polished Deep Lip Forged Wheels
Deep Dish · Gunmetal
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
On a compact performance platform, every pound of rotational mass fights the car's natural agility. A forged wheel keeps strength at the factory-rated level while cutting that rotational weight, which is where the driving-feel improvement actually comes from.
The Proton GEN-2 ships from the factory on a 4x114.3 bolt pattern with a 67.1mm center bore and a 15x6J ET46 wheel. Our flush reference for the Proton GEN-2 is 16x7J ET38.; our maximum aggressive reference is 17x7J ET35. — beyond that, expect clearance issues against the fender liner without further modification.
Proton GEN-2 OE Wheel Specs
The Proton GEN-2 ships from the factory on 4x114.3 bolt pattern wheels with a 67.1mm center bore. The stock wheel size is 15x6J ET46, 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 Proton GEN-2 (2008) we drill the 4x114.3 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 — 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) | 15x6J | ET46 | 5.31 in (135 mm) | — | — |
| Flush | 16x7J | ET38 | 5.50 in (140 mm) | +5 mm | +21 mm |
| Maximum | 17x7J | ET35 | 5.38 in (137 mm) | +2 mm | +24 mm |
Vehicles With the Same Hub as the Proton GEN-2 (4x114.3, 67.1 mm Bore)
In our database, 12 other vehicle entries from 4 makes use exactly the same 4x114.3 bolt pattern and 67.1 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.
4x114.3 is used by 0.6% of the vehicle pages in our English fitment guide (41 of 6,503); 31.7% of those also use a 67.1 mm center bore.
Hub-Centric Rings for a 67.1 mm Center Bore
A wheel with a center bore larger than 67.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 70.1 mm | 70.1 → 67.1 mm |
| 70.5 mm | 70.5 → 67.1 mm |
| 71.6 mm | 71.6 → 67.1 mm |
| 72.6 mm | 72.6 → 67.1 mm |
| 73.1 mm | 73.1 → 67.1 mm |
ANKUSI forged wheels are bored to exactly 67.1 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the Proton GEN-2 use?
The 2008 Proton GEN-2 uses a 4x114.3 bolt pattern.
How many lug bolts does the Proton GEN-2 use?
The Proton GEN-2 uses a 4-lug bolt pattern (4x114.3), so you need a 4-lug forged wheel to bolt straight on.
What is the center bore size on the Proton GEN-2?
The Proton GEN-2's center bore is 67.1mm. 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 Proton GEN-2?
Factory wheels on the Proton GEN-2 are 15x6J ET46.
What does a flush wheel fitment look like on the Proton GEN-2?
For a flush look with minimal to no rubbing, we recommend 16x7J at ET38 offset as a starting point on a stock or mildly lowered Proton GEN-2.
Do I need wheel spacers for my Proton GEN-2?
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 Proton GEN-2?
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 5.5" 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 Proton GEN-2?
The Proton GEN-2 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: 15x6 wheels · 15 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.