2004 Rover 25 Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Rover 25 wheels? This page gives the 2004 Rover 25 bolt pattern (4x100), centre bore, factory rim size and the offset range for aftermarket and forged Rover 25 rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2004 Rover 25 uses a 4x100 bolt pattern with a 56.1 mm centre bore and M12x1.5 lug nuts. For aftermarket wheels, 16x7J ET38 sits flush.
Forged wheels for the 2004 Rover 25 — drilled 4x100 with a 56.1 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
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Rover 25 (2004) wheel fitment guide: 4x100 bolt pattern, 56.1mm center bore, factory 15x6J ET45 wheels. Flush and aggressive forged wheel fitment specs from ANKUSI.
Bolt Pattern4x100
Wheel Bolt/NutM12x1.5 Nut
Center Bore56.1mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year2004
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 |
|---|---|
| Flush Fitment | 16x7J at ET38 offset |
Forged Wheel Designs for the Rover 25
Every design below is forged to order, so it can be machined to the Rover 25's 4x100 bolt pattern and 56.1 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 Rover 25 ships from the factory on a 4x100 bolt pattern with a 56.1mm center bore and a 15x6J ET45 wheel. Our flush reference for the Rover 25 is 16x7J ET38.; our maximum aggressive reference is 17x7.5J ET35. — beyond that, expect clearance issues against the fender liner without further modification.
Rover 25 OE Wheel Specs
The Rover 25 ships from the factory on 4x100 bolt pattern wheels with a 56.1mm center bore. The stock wheel size is 15x6J ET45, 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 Rover 25 (2004) we drill the 4x100 pattern and cut the centre bore to 56.1mm 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 & Backspacing Reference
Backspacing is calculated as: wheel width (in) / 2 + offset (mm) / 25.4 + 0.5.
- OE 15x6J ET45: backspacing ≈ 5.27"
- Flush 16x7J ET38: backspacing ≈ 5.5"
- Max 17x7.5J ET35: backspacing ≈ 5.63"
Use our offset & backspacing calculator to fine-tune your fitment, or contact ANKUSI for a custom forged wheel quote for your Rover 25.
Vehicles With the Same Hub as the Rover 25 (4x100, 56.1 mm Bore)
In our database, 40 other vehicle entries from 9 makes use exactly the same 4x100 bolt pattern and 56.1 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.
4x100 is used by 6.9% of the vehicle pages in our English fitment guide (451 of 6,503); 9.1% of those also use a 56.1 mm center bore.
Hub-Centric Rings for a 56.1 mm Center Bore
A wheel with a center bore larger than 56.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 57.1 mm | 57.1 → 56.1 mm |
| 60.1 mm | 60.1 → 56.1 mm |
| 63.4 mm | 63.4 → 56.1 mm |
| 64.1 mm | 64.1 → 56.1 mm |
| 73.1 mm | 73.1 → 56.1 mm |
ANKUSI forged wheels are bored to exactly 56.1 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the Rover 25 use?
The 2004 Rover 25 uses a 4x100 bolt pattern.
How many lug bolts does the Rover 25 use?
The Rover 25 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 Rover 25?
The Rover 25's center bore is 56.1mm. 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 does a flush wheel fitment look like on the Rover 25?
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 Rover 25.
Do I need wheel spacers for my Rover 25?
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 Rover 25?
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 Rover 25?
The Rover 25 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).
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.