Customer-specification fitment guide for the Audi RS3. 5x112, 57.1, hub-centric — referenced against recorded LFI customer builds and specified from the car outward.
LFI forged wheels for the Audi RS3 use 5x112 PCD, 57.1 centre bore, 690 kg load target, 1,600 Nm torque target, with width, offset, tyre support, and brake clearance matched to the actual car before production.
Audi RS3 Specification Notes
Most recorded RS3 builds here start from 5x112 PCD, 57.1 mm hub-centric machining, a 690 kg per-wheel road-use load target and a 1,600 Nm static torque-load review. Final offset and concavity are still decided by the exact 8V or 8Y brake package, tyre shoulder and ride height.
Chassis-Matched Width, offset, and concavity specified to the vehicle — specified from measured vehicle requirements rather than shelf-size assumptions.
02
Brake Clearance Spoke profile, barrel contour, and backpad machined to the brake package on the exact car.
03
Forged Response Lower unsprung mass sharpens steering, braking feel, and ride control — immediately noticeable from the first drive.
Face profile is selected around brake clearance and load specification.
Featured Case
Customer FitmentReference
2018 Audi RS3 MF110 fitment
A recorded LFI customer specification. Final width, offset, tyre pairing, ride height, hardware seat and load specification are confirmed against the actual vehicle at order time.
The primary row is drawn from recorded LFI build data. Alternate rows are specification directions — brake template, tyre shoulder, load target, and ride height are confirmed at order time.
Direction
Wheel size
Wheel model
Best for
Notes
Primary
18x9 ET4 / 18x9 ET-14
MF111
Real LFI build record
LFI customer fitment record. Confirm tyre shoulder, brake template, ride height, and final offset.
Alternate
19x9.5 ET43 / 19x9.5 ET45
MF110
Customer-proven direction
LFI customer fitment record. Confirm tyre shoulder, brake template, ride height, and final offset.
Additional
19x10 ET19 / 19x9 ET39
REX-03M
Customer-proven direction
LFI customer fitment record. Confirm tyre shoulder, brake template, ride height, and final offset.
Engineering Proof
Load And TorqueValidation Logic
Wheel strength is not a single number. Vertical load, braking torque, drive torque, spoke-root stress, hub-pad stress, and bolt-seat behavior are all part of the engineering package — validated together, not in isolation.
Why load rating still matters
The Audi RS3 has a verified GAWR of 1105 kg — 553 kg per wheel at the axle. LFI targets 690 kg per wheel, providing meaningful reserve.
Torque Validation
Wheel strength is broader than vertical load. LFI also reviews acceleration, braking, cornering, potholes, tyre grip, hub-pad stress, bolt-seat stress, spoke-root stress, and rim-barrel torque reaction against an approximately 1,600 Nm per wheel static torque load target.
For the full engineering story behind each wheel, LFI's How LFI Wheels Are Made page covers design, forging, CNC machining, finishing, and quality control.
Wheel load rating
Per-axle equivalent
Margin vs axle baseline
Status
How LFI positions it
690 kg
1380 kg per axle
+25% vs 553 kg/wheel
Green - Preferred
Street, fast-road, and daily use.
790 kg
1580 kg per axle
+43% vs 553 kg/wheel
Blue - Extra reserve
High-speed, harsh-road, heavy tyre, or extra reserve.
890 kg
1780 kg per axle
+61% vs 553 kg/wheel
Blue - Extra reserve
High-speed, harsh-road, heavy tyre, or extra reserve.
Torque-load target: approximately 1,600 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, tyre package, and selected wheel load specification
690 kg preferred target
Vehicle mass and sustained road loading.
Torque load
Conservative 1g dry braking check with 60% front bias
~1,600 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
Lateral loading under cornering.
Combined static load case
Radial load + torque load + cornering load
Application-specific
Real-world loads are combined, not isolated.
Engineering Article
Why Radial-Load FEAAlone Is Not Enough
For forged wheel applications, vertical load is 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 RS3 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.
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
2018 Audi RS3 MF110 fitment
A recorded LFI customer specification. Final width, offset, tyre pairing, ride height, hardware seat and load specification are confirmed against the actual vehicle at order time.
A recorded LFI customer specification. Final width, offset, tyre pairing, ride height, hardware seat and load specification are confirmed against the actual vehicle at order time.
Specification reference
A recorded build with full specification data. Installed photos to follow.
A recorded LFI customer specification. Final width, offset, tyre pairing, ride height, hardware seat and load specification are confirmed against the actual vehicle at order time.
Specification reference
A recorded build with full specification data. Installed photos to follow.
A recorded LFI customer specification. Final width, offset, tyre pairing, ride height, hardware seat and load specification are confirmed against the actual vehicle at order time.
Specification reference
A recorded build with full specification data. Installed photos to follow.
A recorded LFI customer specification. Final width, offset, tyre pairing, ride height, hardware seat and load specification are confirmed against the actual vehicle at order time.
Specification reference
A recorded build with full specification data. Installed photos to follow.
A recorded LFI customer specification. Final width, offset, tyre pairing, ride height, hardware seat and load specification are confirmed against the actual vehicle at order time.
Specification reference
A recorded build with full specification data. Installed photos to follow.
LFI supports Audi RS3 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 & Tyre Conditions
City roads, highways, potholes, wet-weather tires, ride comfort, and tyre availability can all change the best wheel and tyre recommendation.
Global Supply
DDP shipping available to major markets. The price quoted is the price paid — no surprise duties or taxes 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, tyre availability, and brake clearance.
Are the Audi RS3 Forged Wheel Fitment Guide case studies real LFI customer builds?
Yes. Every case study is drawn from a recorded LFI customer build and specification.
What PCD does LFI confirm before machining?
Recorded LFI references point to 5x112 PCD. LFI confirms the exact car before machining.
How is the hub bore confirmed?
Recorded centre bore reference is 57.1. Hub-centric machining is confirmed per build.
What wheel size is a sensible starting point?
A recorded starting point is 18x9 ET4 / 18x9 ET-14. Tyre pairing and clearance are confirmed per build.
Can LFI build this fitment without spacers?
Yes. Offset, brake clearance, and body clearance are machined into the wheel — no spacer dependency.
Why do some cases show customer images coming soon?
Some recorded builds have complete specification data while customer images are still pending.
What should I send before LFI quotes a build?
Model year, trim, brake package, tyre target, ride height, alignment, PCD, centre 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 Singapore and Malaysia locally, and ships worldwide with remote fitment consultation.
Can I choose a different finish from the photos?
Yes. Every finish is custom — gloss, satin, brushed, polished, bronze, black, silver, and bespoke options are available.
Do I need to copy the exact photographed setup?
No. The photographed setup is a reference. Width, offset, concavity, finish, and tyre pairing are adjusted to your car and priorities.
Will these wheels clear big brakes?
Yes, when the caliper template, barrel profile, spoke shape, backpad, and offset are specified correctly. LFI validates brake clearance as part of the build.
Can LFI build a more comfortable daily setup?
Yes. A comfort-biased setup uses conservatively sized wheels and tyres with enough sidewall for road use.
Can LFI build a more aggressive show setup?
Yes. Fender clearance, steering lock, tyre shoulder, ride height, and alignment must be reviewed as a package.
Can I keep factory centre caps?
Yes, when the cap diameter, clip style, pocket depth, and face profile are specified in the build.
Are square setups available?
Yes. A square setup gives you tyre rotation, predictable handling, and a clean road package.
Are staggered setups available?
Yes. Staggered setups are available when the platform, tyre diameters, and drivetrain support them.
Why does LFI care about tyre shoulder shape?
Two tyres with identical printed sizes can fit differently. Shoulder profile affects fender clearance, steering lock clearance, and final stance.
Why not order by offset alone?
Offset alone does not describe a wheel. Width, tyre size, brake clearance, hub geometry, concavity, and ride height all determine whether the setup works.
Can LFI ship internationally?
Yes. International orders are supported with remote fitment consultation.
Start Your Audi RS3Build
Share your model year, brake package, tyre target, ride height, alignment, centre-cap plan, and finish target so LFI can confirm the forged wheel specification.
