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2008 Chevrolet HHR SS Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Chevrolet HHR SS wheels? This page gives the 2008 Chevrolet HHR SS bolt pattern (5x110), centre bore, factory rim size and the offset range for aftermarket and forged Chevrolet HHR SS rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Forged wheels for Chevrolet HHR — styles, sizes & factory quote →
Chevrolet HHR SS (2008): 5x110 bolt pattern, 65.1mm center bore. Factory wheels: 18x7.5J at ET42 offset, front and rear. Reference fitment ranges.
Bolt Pattern5x110
Wheel Bolt/NutM12x1.5 Nut
Center Bore65.1mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year2008
CategoryWagon
✓ 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) | 18x7.5J F/R |
| Flush Fitment | 19x8.5J at ET35 offset |
| Maximum Aggressive | 20x9.0J at ET30 offset |
Forged Wheel Designs for the Chevrolet HHR SS
Every design below is forged to order, so it can be machined to the Chevrolet HHR SS's 5x110 bolt pattern and 65.1 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
Wagons split the difference between sedan agility and load-carrying duty, and the wheels have to serve both roles. A forged wheel holds the same structural margin as the factory piece while trimming rotational weight, which benefits both the empty-car handling and the loaded-car ride.
The Chevrolet HHR SS runs a 5x110 bolt pattern, 65.1mm center bore, and a 18x7.5J, front and rear, wheel from the factory. Our Flush Fitment reference is 19x8.5J ET35, which tucks the tire under the fender lip on a stock-height Chevrolet HHR SS. Our Maximum Aggressive reference is 20x9.0J ET30 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Chevrolet HHR SS OE Wheel Specs
The 2008 Chevrolet HHR SS (Wagon) uses a 5x110 bolt pattern with a 65.1mm center bore. Factory wheels are 18x7.5J F/R.
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 Chevrolet HHR SS (2008) we drill the 5x110 pattern and cut the centre bore to 65.1mm 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 (flange allowance):
- OE: 18x7.5J ET42 → ~5.9″ backspacing
- Flush: 19x8.5J ET35 → ~6.13″ backspacing
- Max: 20x9.0J ET30 → ~6.18″ 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 Chevrolet spec, or want a wheel built to a custom offset for your Chevrolet HHR SS? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.
Frequently Asked Questions
What bolt pattern (PCD) does the Chevrolet HHR SS use?
The 2008 Chevrolet HHR SS uses a 5x110 bolt pattern.
How many lug bolts does the Chevrolet HHR SS use?
The Chevrolet HHR SS uses a 5-lug bolt pattern (5x110), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the Chevrolet HHR SS?
The Chevrolet HHR SS's center bore is 65.1mm. 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 Chevrolet HHR SS?
Factory wheels on the Chevrolet HHR SS are 18x7.5J F/R.
What is the biggest wheel size I can fit on my Chevrolet HHR SS without rubbing?
The most aggressive fitment we recommend without fender work is 20x9.0J at ET30 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 Chevrolet HHR SS?
For a flush look with minimal to no rubbing, we recommend 19x8.5J at ET35 offset as a starting point on a stock or mildly lowered Chevrolet HHR SS.
Do I need wheel spacers for my Chevrolet HHR SS?
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 Chevrolet HHR SS?
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 6.13" 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 Chevrolet HHR SS?
The Chevrolet HHR SS 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.
Wheel Installation Reference: Torque, Thread & TPMS
Thread & Fastener: M12x1.5, conical-seat lug nut.
Factory Torque Spec: 136 Nm (100 ft-lb). Covers most Chevrolet passenger cars and crossovers on M12 studs.
TPMS: TPMS (Tire Pressure Monitoring System) has been federally mandated on all new light vehicles sold in the US since the 2008 model year. If your wheels use OE-style sensors, have them transferred or cloned to the new wheels at installation.
Tire Pressure: Always set tire pressure to the value on your vehicle's tire placard (driver's doorjamb or glovebox), not the max PSI printed on the tire sidewall — this is trim- and tire-size-specific and stays the same reference point when you switch to a different wheel and tire combination.
Reference data compiled from published OEM service specifications and cross-checked against independent repair sources; always confirm against your owner's manual or door-jamb placard before installation.