Do I need wheel spacers for my Honda Civic Si Racecar?

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.

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 Honda Civic Si Racecar?

The Honda Civic Si Racecar 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.

← Fitment Guide · All Honda Fitment Guides · All Honda Civic years & trims

2006 Honda Civic Si Racecar Wheels & Rims: Bolt Pattern, Offset & Sizes

Fitting Honda Civic Si Racecar wheels? This page gives the 2006 Honda Civic Si Racecar bolt pattern, centre bore, factory rim size and the offset range for aftermarket and forged Honda Civic Si Racecar rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.

Honda Civic Si Racecar (2006): F 17x8.0J / R 17x8.0J on a purpose-built racing hub. Competition/one-off vehicle -- no aftermarket data published.

Bolt PatternPurpose-built racing hub

Wheel Bolt/NutM12x1.5 Nut

Wheel Load Rating700–850 kg/wheel (Performance / Sports Car segment reference)

Year2006

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 →

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More free tools: bolt pattern lookup and offset calculator for your website.

Forged wheels for the Honda Civic Si RacecarMachined to the factory bolt pattern · 14–24 inch · offset calculated for your car · 3D drawing before production

Work-Style Gloss White Custom Forged Wheels – Toyota GR86 / Civic Type R Fitment (5-Lug)

ESR-Style Matte Silver Mesh 2-Piece Riveted Polished Lip Forged Wheels – Honda Civic Type R / Subaru WRX Fitment (5-Lug)

Honda OEM-Style Gloss Black Multi-Spoke Turbine Forged Wheels – Honda Civic / Accord Fitment (5-Lug)

Honda Full Polished Silver 5-Spoke Forged Wheels – Honda NSX Tribute by Italdesign Fitment (18-21in, 5x120)

See wheel designs All Honda Civic wheels

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.

Diagram showing wheel measurement points: centerline, center bore diameter, PCD, offset, rim width and diameter — Centerline, center bore, PCD, offset, width & diameter

Diagram comparing positive, zero, and negative wheel offset relative to the wheel centerline — Positive vs. zero vs. negative offset

ANKUSI Engineering Expert Advice

Competition and prototype hubs are built to a specific series' or shop's homologation rules, not to a retail bolt pattern, so there's no generic 'Flush' or 'Maximum Aggressive' range that means anything here. What forging does contribute is unsprung mass reduction at the exact same structural rating the homologated spec requires — a real, measurable gain in a discipline where every gram of rotational inertia is fought for.

The Honda Civic Si Racecar runs F 17x8.0J / R 17x8.0J on a purpose-built racing hub, not a standard retail bolt pattern. ANKUSI's motorsport program forges to this exact homologated specification rather than offering generic Flush or Maximum Aggressive references, which would be meaningless on a hub this specialized — contact us with your series or application's exact hub requirements.

Honda Civic Si Racecar Wheel & Hub Specs

The 2006 Honda Civic Si Racecar (GT / Cup Race Car) runs F 17x8.0J / R 17x8.0J on a purpose-built racing hub. These are the factory or homologated racing specifications, not a standard retail bolt pattern.

Why We Don't Publish Generic Aftermarket Fitment for This Vehicle

The Honda Civic Si Racecar is a competition, prototype, vintage or one-off commissioned vehicle. Unlike a mass-produced road car, there is no generic enthusiast community publishing "Flush" or "Maximum Aggressive" offset ranges for it, and its hub is homologated to a specific racing application. Publishing invented offset numbers for a car like this would be misleading, so we don't.

Custom & Motorsport Wheel Program

ANKUSI forges wheels to exact motorsport specifications -- centerlock, beadlock, homologation-compliant, restoration-correct, or one-off replica builds. Contact ANKUSI with your exact hub pattern, offset and application and we will confirm whether we can build for it.

Custom Forged Wheels for the Honda Civic Si Racecar (2006)

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. Diameter, width, offset, concavity, monoblock or multi-piece construction and the finish are all yours to choose.

We do not hold this pattern wheels on a shelf — they are forged to order, which is why any offset, width and bore combination on this page is buildable rather than limited to a stock list.

Request a quote WhatsApp the factory Wholesale & OEM

Frequently Asked Questions

Does the Honda Civic Si Racecar use a standard bolt pattern?
No. It uses a purpose-built racing hub, not a retail lug-bolt pattern, so off-the-shelf aftermarket road wheels do not apply.

Can ANKUSI build wheels for a Honda Civic Si Racecar?
Yes, on a custom-quote basis for restoration, motorsport or replica applications. Contact us with your exact specifications.

Why isn't there a Flush/Max fitment guide for this car?
Flush and Maximum Aggressive figures on our other pages come from verified enthusiast community data for mass-produced road cars. No such generic data exists for this vehicle, so we don't fabricate it.

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.

Last updated: 2026-09-18.

Forged Wheel Designs for the Honda Civic Si Racecar

Every design below is forged to order, so it can be machined to the Honda Civic Si Racecar's bolt pattern, with the width and offset calculated for your setup.

Work-Style Gloss White Custom Forged Wheels

Toyota GR86 / Civic Type R Fitment · 5-Lug

ESR-Style Matte Silver Mesh 2-Piece Riveted Polished Lip Forged Wheels

Honda Civic Type R / Subaru WRX Fitment · 5-Lug

Honda OEM-Style Gloss Black Multi-Spoke Turbine Forged Wheels

Honda Civic / Accord Fitment · 5-Lug

Honda Full Polished Silver 5-Spoke Forged Wheels

Honda NSX Tribute by Italdesign Fitment · 18-21in, 5x120

Advan Racing GT-Style Gunmetal 5-Spoke Polished Extra Deep Lip Forged Wheels

Toyota GR86 / Honda Civic Type R Fitment · 5-Lug

BBS RI-D-Style Gloss Black Magnesium Alloy Forged Wheels

BMW M3 G80 / Honda Civic Type R Fitment · 5-Lug

Work-Style Matte Bronze 5-Spoke 2-Piece Riveted Deep Lip Forged Wheels

Honda Civic Type R / Golf GTI Fitment · 5-Lug

BBS RE-V7-Style Metallic Gray 12-Spoke Forged Wheels – Toyota GR86 / Honda Civic Type R, front view

BBS RE-V7-Style Metallic Gray 12-Spoke Forged Wheels - Toyota GR86 / Honda Civic Type R Fitment (5-Lug)

BBS-Style forged wheels featuring the RE-V7-style metallic gray 12-spoke design, forged to order at ANKUSI's Guangzhou plant. Bolt pattern, centre bore, diameter, width and offset are machined for your exact vehicle — this listing covers 5-lug applications.

← Back to the full Fitment Guide · Browse forged wheels

Bolt pattern and center bore on this page were cross-checked against at least two independent sources before publication. Last reviewed 2026-09-18. Spotted an error? Email info@ankusi.com and we will verify and correct it.