This guide helps Audi RS6 C7 / C8 owners choose forged wheels with the right stance, tire support, brake clearance, and road manners. The goal is simple: a wheel that looks right, fits properly, and feels sharp on the actual car.
Street Fitment
Balanced sizing for daily driving, tire availability, and clean fender clearance.
Brake Clearance
Spoke profile, barrel shape, and backpad are reviewed around the exact brake package.
Forged Response
Lower unsprung mass can sharpen steering, braking feel, and ride control.
Quick Specs
FitmentSnapshot
Area
Guide value
Fitment note
PCD
5x112
Confirm exact vehicle before machining.
Center bore
66.5 / 66.45
Machine hub-centric to the confirmed car.
Wheel sizes
22x10.5 ET9 / 21x10.5 ET20 / 21x10.5 ET20
Review tire, brake, fender and ride height together.
Wheel models
MF910 / MF55 Deep concave / MF55
Face profile depends on brake and load target.
Featured Case
Customer FitmentReference
2017 Audi RS6 C7.5 MF55 fitment
This setup gives 2017 Audi RS6 C7.5 owners a real-world reference for stance, brake clearance, tire shoulder, and forged-wheel proportions.
2017 Audi RS6 C7.5 on MF55.2017 Audi RS6 C7.5 on MF55.2017 Audi RS6 C7.5 on MF55.2017 Audi RS6 C7.5 on MF55.2017 Audi RS6 C7.5 on MF55.2017 Audi RS6 C7.5 on MF55.2017 Audi RS6 C7.5 MF55 fitment - inv2025-8-8621-rs6-c7-5-mf55-29253986.jpg2017 Audi RS6 C7.5 MF55 fitment - inv2025-8-8621-rs6-c7-5-mf55-31967398.jpg2017 Audi RS6 C7.5 MF55 fitment - inv2025-8-8621-rs6-c7-5-mf55-31967399.jpg2017 Audi RS6 C7.5 MF55 fitment - inv2025-8-8621-rs6-c7-5-mf55-31967400.jpg2017 Audi RS6 C7.5 MF55 fitment - inv2025-8-8621-rs6-c7-5-mf55-31967401.jpg2017 Audi RS6 C7.5 MF55 fitment - inv2025-8-8621-rs6-c7-5-mf55-31967402.jpg2017 Audi RS6 C7.5 MF55 fitment - inv2025-8-8621-rs6-c7-5-mf55-31967403.jpg2017 Audi RS6 C7.5 MF55 fitment - inv2025-8-8621-rs6-c7-5-mf55-31967404.jpg2017 Audi RS6 C7.5 MF55 fitment - inv2025-8-8621-rs6-c7-5-mf55-31967405.jpg
The primary row comes from an LFI customer fitment record. Alternate rows are reference directions only, then LFI still checks brake template, tire shoulder, load target, and the actual ride height before production.
Direction
Wheel size
Wheel model
Best for
Notes
Primary
22x10.5 ET9
MF910
Real LFI build record
LFI customer fitment record. Confirm tire shoulder, brake template, ride height, and final offset.
Alternate
21x10.5 ET20
MF55 Deep concave
Customer-proven direction
LFI customer fitment record. Confirm tire shoulder, brake template, ride height, and final offset.
Additional
21x10.5 ET20
MF55
Customer-proven direction
LFI customer fitment record. Confirm tire shoulder, brake template, ride height, and final offset.
Engineering Proof
Load And TorqueValidation Logic
Wheel fitment is more than diameter and offset. LFI reviews vertical load, braking and drive torque, spoke-root behavior, hub-pad stress, bolt-seat stress, and combined load cases before final production.
Why load rating still matters
For this guide, LFI uses a working GAWR-style axle baseline of 1360 kg, or 680 kg per wheel. The preferred customer-facing target in this table is 790 kg per wheel when the wheel family allows it.
Torque is part of the wheel story
Wheel strength is not only vertical load. LFI also reviews acceleration, braking, cornering, potholes, tire grip, hub-pad stress, bolt-seat stress, spoke-root stress, and rim-barrel torque reaction against an approximately 2,300 Nm per wheel static torque load target.
If you want the manufacturing side of the process, LFI's How LFI Wheels Are Made page shows the design, forging, CNC machining, finishing, and QC logic behind a custom forged wheel before it ever reaches the car.
Wheel load rating
Per-axle equivalent
Margin vs axle baseline
Status
How LFI positions it
690 kg
1380 kg per axle
+1% vs 680 kg/wheel
Low reserve
Use only after exact axle data, tire load, and duty cycle are confirmed.
790 kg
1580 kg per axle
+16% vs 680 kg/wheel
Preferred
Road-use, fast-road, and daily forged applications.
890 kg
1780 kg per axle
+31% vs 680 kg/wheel
Extra reserve
High-speed, harsher-road, heavy tire, or extra-reserve applications.
Torque-load target: approximately 2,300 Nm per wheel under conservative dry-braking validation.
Validation load case
Reference basis
Suggested LFI target
Why it matters
Radial vehicle load
Vehicle mass, passengers, tire package, and selected wheel load target
790 kg preferred target
Represents vehicle mass and repeated road loading.
Torque load
Conservative 1g dry braking check with 60% front bias
~2,300 Nm per wheel
Loads the hub pad, bolt seats, spoke roots, and rim barrel.
Cornering load
Lateral force from road grip, sticky tires, and fast-road or track use
Application-specific
Shows how the wheel behaves when the chassis loads sideways during aggressive cornering.
Combined static load case
Radial load + torque load + cornering load
Application-specific
More realistic than isolated vertical checks because real driving loads rarely occur one at a time.
Engineering Article
Why Radial-Load FEAAlone Is Not Enough
For forged wheel applications, vertical load is only one part of the engineering picture. LFI also reviews spoke-root stress, hub-pad loading, bolt-seat behavior, rim-barrel stress, and combined static road-load cases where relevant.
Japanese technical standard for light alloy wheels.
Used as a reference standard for relevant load and durability requirements.
VIA
Japanese third-party wheel registration and verification system.
Applies only to specific wheel models/specifications that are formally registered.
TUV
European technical testing or certification framework.
Applies only when a specific wheel/specification has supporting TUV documentation.
SAE
Common industry test framework for aftermarket wheel performance and impact evaluation.
Useful for impact and fatigue validation depending on market and specification.
Internal validation
LFI's own engineering and test process.
Used for bespoke specifications built from validated design families.
Static FEA
Computer-based engineering simulation.
Used before machining to evaluate stress, weight, torque load, and clearance.
Selected high-volume reference specifications may be supported by external lab reporting or third-party documentation. Bespoke Audi RS6 C7 / C8 specifications are engineered from the same design families and reviewed through LFI's internal design, load, brake-clearance, and fitment-validation process. Customers can also review LFI's Testing & Compliance page for the broader testing-language context.
Critical fitment warning: do not order Audi RS6 C7 / C8 wheels by model name alone. Confirm PCD, center bore, brake package, hardware seat, tire size, and ride height before production.
Reference test basis: CSF1 19x9 ET29 was tested to JWL Aug. 2014 conditions at the stated load.
Named lab route: the reference report runs through a TUV SUD accredited lab. Each custom order still gets its own load, brake, tyre, and fitment review.
Case Studies
Customer Fitment StoriesPhoto And Spec Cases
2017 Audi RS6 C7.5 MF55 fitment
This setup gives 2017 Audi RS6 C7.5 owners a real-world reference for stance, brake clearance, tire shoulder, and forged-wheel proportions.
2017 Audi RS6 C7.5 on MF55.2017 Audi RS6 C7.5 on MF55.2017 Audi RS6 C7.5 on MF55.2017 Audi RS6 C7.5 on MF55.2017 Audi RS6 C7.5 on MF55.2017 Audi RS6 C7.5 on MF55.
Audi RS6 C7 / C8 BuildsFrom Singapore to Global Customers
LFI supports Audi RS6 C7 / C8 customers with vehicle-specific forged wheel consultation, DDP supply where available, and direct Singapore / Malaysia support. Fitment recommendations are based on the confirmed vehicle, brake package, tyre target, load requirement, and intended use.
Fitment Consultation
LFI helps owners choose between OEM+, lightweight square, brake-clearance, show-style, and track-focused forged setups.
Road & Tire Conditions
City roads, highways, potholes, wet-weather tires, ride comfort, and tire availability can all change the best wheel and tire recommendation.
Global Supply
LFI offers Duty Paid Shipping (DDP) to major markets, so eligible customers pay the confirmed landed price with no extra import tariffs or taxes due on delivery.
Singapore / Malaysia Direct Support
Singapore customers can visit LFI at 76 Playfair Road, #01-03, Singapore 367996 to view forged wheel samples, finishes, concavity profiles, and selected in-stock wheels.
Malaysia customers can order directly with LFI and request pre-production consultation for road use, track use, tire availability, and brake clearance.
Are the Audi RS6 C7 / C8 Forged Wheel Fitment Guide case studies real LFI customer builds?
Yes. The case studies are based on real LFI forged-wheel customer projects and fitment records.
What PCD does LFI confirm before machining?
Recorded LFI references point to 5x112 PCD. LFI confirms the exact vehicle before machining.
How is the hub bore confirmed?
Recorded hub-bore references show 66.5. LFI confirms the hub-centric machining value against the actual car before quoting or production.
What wheel size is a sensible starting point?
A recorded starting point is 22x10.5 ET9. Tyre pairing, brake clearance and ride height are confirmed around the actual car.
Can LFI build this fitment without spacers?
Yes, when the offset, brake clearance, and body clearance are engineered into the forged wheel specification.
Why do some cases show customer images coming soon?
Some recorded builds have full specification value while customer images are still pending.
What should I send before LFI quotes a build?
Send the model year, trim, brake package, tyre target, ride height, alignment notes, PCD, hub bore, hardware seat, centre-cap plan, finish, load target and intended use.
Can Singapore, Malaysia, and international owners order directly from LFI?
Yes. LFI supports local Singapore and Malaysia customers and ships forged wheels internationally with fitment consultation.
Can I choose a different finish from the photos?
Yes. The photos are fitment references. LFI can quote gloss, satin, brushed, polished, bronze, black, silver, and custom finishes depending on the wheel design.
Do I need to copy the exact photographed setup?
No. The photographed setup is a proven reference point, but LFI can adjust width, offset, concavity, finish, and tire pairing around your car and goals.
Will these wheels clear big brakes?
Brake clearance depends on the caliper template, barrel profile, spoke shape, backpad, and final offset. LFI checks these before machining.
Can LFI build a more comfortable daily setup?
Yes. A comfort-biased setup can use a more conservative width, sensible offset, and tire sizing with enough sidewall for road use.
Can LFI build a more aggressive show setup?
Yes, but fender clearance, steering clearance, tire shoulder, ride height, and alignment need to be checked together.
Can I keep factory center caps?
Often yes, if the cap diameter, clip style, pocket depth, and face profile are planned before production.
Are square setups available?
Yes. Square setups are popular when owners want easy tire rotation, predictable handling, and a clean road-use package.
Are staggered setups available?
Yes. Staggered setups can work when the platform, tire diameter, and drivetrain requirements support it.
Why does LFI care about tire shoulder shape?
Two tires with the same printed size can sit differently. Shoulder shape affects fender clearance, steering clearance, and the final stance.
Why not order by offset alone?
Offset only tells part of the story. Width, tire size, brake clearance, hub geometry, concavity, and ride height all affect whether the setup works.
Can LFI ship internationally?
Yes. LFI supports international forged-wheel orders and can prepare fitment consultation remotely before production.
Start Your Audi RS6 C7 / C8Build
Share your model year, brake package, tire target, ride height, alignment, center-cap plan, and finish target so LFI can confirm the forged wheel specification.
