Split-spoke architecture
Two branches per spoke root distribute cornering load across a wider base. Less stress concentration at the hub. More predictable behaviour under repeated heat cycles.
LFI CSF-R Racing Forged Wheels
$420.00
Price per Wheel
Material6061-T6 forged aluminium
Sizing16-21 inch
Width5.5J to 13J
Offset-44 to +70
Load targetUp to 1050 kg
Forging12,000-ton forged
Performance Series / Motorsport Forged
LFI CSF-RMotorsport Forged Wheel
The track-day CSF. Split-spoke architecture with deep barrel clearance, aggressive concavity and a load path designed around cornering and braking. Built for drivers who measure wheels by lap time - stiffer under lateral load, cleaner around big brakes, and specified to the car before machining.
Starting from USD 520 per wheel
- 6061-T6 monoblock forged aluminium
- 17-21 inch track-focused fitments
- Split-spoke motorsport architecture
- Brake clearance, width, offset and finish per car
Track-DaySplit Spoke
CSF-R is shaped around the four things that matter on a circuit: brake clearance, stiffness under lateral load, heat management and tyre support. The split-spoke layout opens up the brake package. The barrel profile leaves room for big calipers. The hub-to-rim load path is direct.
Deep barrel clearance
The spoke profile and barrel are shaped around the brake envelope, not corrected with spacers after the fact. Large rotors and multi-piston calipers fit because the wheel is designed around them.
Aggressive concavity
Where width and offset allow, CSF-R carries a deeper face profile than the standard CSF line. Concavity is balanced against caliper clearance and structural reserve.
Cornering LoadIs The Design Load
Most wheel design starts with radial load: the car weight pushing down. CSF-R starts with lateral load, the force that tries to pull the tyre and wheel sideways mid-corner.
Under hard cornering, the outer wheels see vehicle mass, lateral force and brake torque at the same time. CSF-R answers with split-spoke roots, a wider load base and a barrel profile that leaves room for heat-soaked brakes.
A spoke that is strong enough in pure radial load can still feel vague when cornering and braking overlap. The CSF-R load path is built for the overlap.
combined stress ~= radial load + lateral load + brake torque over effective section
6061-T6Monoblock forged aluminium
17-21 inchDiameter range
Split-spokeMotorsport-derived spoke architecture
Deep concavityWidth, offset and brake-package dependent
CSF-R Design Intent
CSF-R suits builds where the wheel needs to look purposeful before the car even moves. The design works well on cars with larger brakes, wider tires, and a more committed stance, while still keeping the forged weight advantage that makes the car feel sharper. The current table spans roughly 4.8 to 11.6 kg depending on size, so smaller fitments favor response while larger fitments add stance and load reserve.
Forged 6061-T6 Aluminium Monobloc
Each wheel is cut from forged 6061-T6 aluminium and finished to suit the build. Width, offset, bolt pattern, center bore, concavity, and color are selected after the car and tire setup are known.
Best On The Right Car
Good match for M cars, AMG sedans, RS models, GR Yaris, Civic Type R, WRX, and other cars where brake room and an aggressive track look matter as much as weight.
CSF-R Product Views
These product views show the CSF-R spoke shape, brake-window layout and concavity direction. Final width, offset, center bore, load rating, finish and concavity are confirmed around your car before production.
Lightweight Performance Face
CSF-R is shaped for customers who want a performance forged wheel with enough brake clearance and spoke structure for real road or track use.
Spec Around The Build
This race-focused split-spoke wheel is ordered around the car's tire width, brake package, ride height, offset target, and finish direction.
ApproximateCSF-R Weights
Approximate weight excludes center cap and valve. Final weight changes with width, offset, bolt pattern, brake clearance, load rating, and machining depth.
| 16 inch | Weight | 17 inch | Weight | 18 inch | Weight | 19 inch | Weight | 20 inch | Weight | 21 inch | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 16x5.5J | 4.8 kg / 10.6 lb | 17x6.5J | 6.03 kg / 13.3 lb | 18x7J | 7.07 kg / 15.6 lb | 19x7.5J | 8.11 kg / 17.9 lb | 20x8J | 9.15 kg / 20.2 lb | 21x8J | 10 kg / 22.0 lb |
| 16x6J | 4.99 kg / 11.0 lb | 17x7J | 6.22 kg / 13.7 lb | 18x7.5J | 7.26 kg / 16.0 lb | 19x8J | 8.3 kg / 18.3 lb | 20x8.5J | 9.34 kg / 20.6 lb | 21x8.5J | 10.19 kg / 22.5 lb |
| 16x6.5J | 5.18 kg / 11.4 lb | 17x7.5J | 6.41 kg / 14.1 lb | 18x8J | 7.45 kg / 16.4 lb | 19x8.5J | 8.49 kg / 18.7 lb | 20x9J | 9.53 kg / 21.0 lb | 21x9J | 10.38 kg / 22.9 lb |
| 16x7J | 5.37 kg / 11.8 lb | 17x8J | 6.6 kg / 14.6 lb | 18x8.5J | 7.64 kg / 16.8 lb | 19x9J | 8.68 kg / 19.1 lb | 20x9.5J | 9.41 kg / 20.7 lb | 21x9.5J | 10.26 kg / 22.6 lb |
| 16x7.5J | 5.56 kg / 12.3 lb | 17x8.5J | 6.79 kg / 15.0 lb | 18x9J | 7.83 kg / 17.3 lb | 19x9.5J | 8.56 kg / 18.9 lb | 20x10J | 9.6 kg / 21.2 lb | 21x10J | 10.45 kg / 23.0 lb |
| 16x8J | 5.75 kg / 12.7 lb | 17x9J | 6.98 kg / 15.4 lb | 18x9.5J | 7.71 kg / 17.0 lb | 19x10J | 8.75 kg / 19.3 lb | 20x10.5J | 9.79 kg / 21.6 lb | 21x10.5J | 10.64 kg / 23.5 lb |
| 17x9.5J | 6.86 kg / 15.1 lb | 18x10J | 7.9 kg / 17.4 lb | 19x10.5J | 8.94 kg / 19.7 lb | 20x11J | 9.98 kg / 22.0 lb | 21x11J | 10.83 kg / 23.9 lb | ||
| 17x10J | 7.05 kg / 15.5 lb | 18x10.5J | 8.09 kg / 17.8 lb | 19x11J | 9.13 kg / 20.1 lb | 20x11.5J | 10.17 kg / 22.4 lb | 21x11.5J | 11.02 kg / 24.3 lb | ||
| 18x11J | 8.28 kg / 18.3 lb | 19x11.5J | 9.32 kg / 20.5 lb | 20x12J | 10.36 kg / 22.8 lb | 21x12J | 11.21 kg / 24.7 lb | ||||
| 18x11.5J | 8.47 kg / 18.7 lb | 19x12J | 9.51 kg / 21.0 lb | 20x12.5J | 10.55 kg / 23.3 lb | 21x12.5J | 11.4 kg / 25.1 lb | ||||
| 18x12J | 8.66 kg / 19.1 lb | 19x12.5J | 9.7 kg / 21.4 lb | 20x13J | 10.74 kg / 23.7 lb | 21x13J | 11.59 kg / 25.6 lb |
CSF-RBuild Data
| Specification | CSF-R value | Fitment note |
|---|---|---|
| Model | LFI CSF-R Motorsport Forged Wheel | Performance Series 6061-T6 monoblock forged wheel. |
| Construction | Monoblock forged aluminium wheel | One-piece forged layout for direct response and clean load transfer. |
| Material | 6061-T6 forged aluminium | Material and final machining depth reviewed against size, offset and load target. |
| Forging | 6061-T6 monoblock forged wheel blank | Vehicle-specific machining confirms final width, PCD, centre bore, offset and brake clearance. |
| Design language | Motorsport split-spoke layout | Two branches per spoke root distribute cornering load across a wider base. |
| Spoke architecture | Split-spoke with wide-angle fork bracing | Wide-angle branch fork resists brake and drive torque across a broader base. |
| Weight reduction | Targeted pocket machining | Face and side pocketing removes non-structural mass while preserving load paths. |
| Diameter range | 17 to 21 inch | Diameter selected around brake package, tyre package, vehicle use and stance. |
| Width range | 5.5J to 13J | Width matched to tyre support, fender clearance, concavity and intended use. |
| Offset range | Vehicle-specific | Offset reviewed with brake envelope, hub position, suspension clearance and face depth. |
| Load target | Confirmed per vehicle | Load target confirmed against vehicle mass, use case, tyre package and road or track duty. |
| Brake clearance method | Caliper envelope, spoke profile, backpad and barrel clearance review | Target is to machine the wheel around the car instead of relying on spacer correction. |
| Warranty | 2-year CSF-R structural warranty | Subject to LFI warranty terms at Warranty. |
| Starting price | USD 520 per wheel | Final price confirmed after width, offset, finish and load-target specification. |
ConcavityAnd Track Options
These optional forged wheel details are confirmed during fitment planning for CSF-R builds where face depth, tire slip resistance, or structural reinforcement needs to be considered.
Forging Profile Option
EnhancedConcavity
LFI concave profiles are built around the relationship between wheel width, offset, diameter, brake clearance, and forging depth. The goal is simple: push the face as deep as the car allows, without compromising fitment, caliper clearance, or structural integrity.
19-22 inch applicationsThree concavity levelsOffset-sensitive designCost option
Maximum Concave Face
The Maximum Concave Face option is available for selected LFI Performance Series, Supreme Concave Series, and Project Speciale forged wheel designs. Depending on wheel width and offset, the face profile can be tuned from mild concave to a much deeper spoke drop.
Wider wheels and lower offsets generally allow stronger concavity. In aggressive applications, fitments can extend to very low offsets where the vehicle body, suspension, and brake package allow it.
Three Concavity Levels
Concavity is not selected by diameter alone. The final face depth is calculated from the full fitment package: rim width, offset, brake clearance, vehicle platform, and the chosen forged wheel design.
The exact concavity level is confirmed during fitment planning. LFI checks the target wheel size, brake envelope, center profile, and vehicle clearance before production.
Deep Concave for High-Offset Cars
Some high-offset vehicles do not naturally allow a deep spoke profile because the wheel face must sit further outward to clear the hub and brake package. For these applications, LFI can offer a specialized heavy-duty blank option that creates a more pronounced concave look while keeping the fitment usable.
This is especially useful for cars where the customer wants a stronger visual stance but still needs proper inner clearance, brake clearance, and road-use reliability.
Fitment Still Comes First
Deep concavity must be balanced against caliper clearance, suspension clearance, fender position, tire width, and the actual offset range the vehicle can accept. The most aggressive face is not always the best face for every car.
LFI will always prioritize a correct forged-wheel fitment over forcing a face profile that creates clearance problems.
Deep Concave Forging Example
The deep concave forging concept shown below demonstrates how a pronounced face profile can be achieved even on a relatively high-offset fitment, using a 19x8.5J ET42 reference example.
Cost option: Enhanced concavity and deep concave blank selection are optional upgrades. Final availability depends on wheel size, brake clearance, vehicle platform, and the selected LFI wheel model.
Performance-Friendly Detail Options
Anti-Slip Knurled Beads
Knurled bead seats can help reduce tire movement on higher-grip applications, including track use, hard braking, drag launches, and sticky tire setups.
Annular Reinforcement Ribs
Reinforcement ribs can add barrel rigidity where the final specification, road conditions, tire package, or vehicle load calls for extra reserve.
Fitment PlanningFor Your Build
Custom forged wheels Singapore
LFI plans each CSF-R set from Singapore around the car's brake package, tyre target, ride height, offset window, load target, centre bore and finish direction.
USA and international orders
US and international customers can order in English through WhatsApp or email. Send vehicle photos, brake details, current wheel and tyre sizes, ride height, fitment goals, intended use and delivery ZIP/postcode. LFI confirms the CSF-R specification remotely and supports DDP shipping where available.
Cars ThatBelong On Circuit
CSF-R fits where track performance, brake clearance and stiffness under lateral load are the priority. Porsche 911. BMW M3/M4. Cayman GT4. GR Supra. Civic Type R.
Porsche track builds
Large Porsche brake packages need spoke profile and barrel clearance planned together. CSF-R was shaped around exactly this.
BMW M builds
Heavy, powerful, brake-intensive. CSF-R's split-spoke root width handles the cornering loads these cars generate.
Japanese performance
Light, stiff, track-prepped. CSF-R adds brake clearance and concavity without pushing into the ultralight Superleggera territory of REX-0R.
Reference ContextNo Guesswork
CSF-R follows the same engineering review process as every LFI custom forged wheel. Each set is reviewed against the vehicle load target, brake package and intended use before production. CSF1 reference testing validates the broader design family; custom CSF-R specifications inherit that engineering approach.
More ProofBehind The Spec
More on the engineering checks behind CSF-R before the wheel is cut.
Load rating
How kilograms per wheel, axle load and load margin decide whether a forged wheel is suitable for the car.
Testing standards
What JWL, VIA and TUV SUD references prove, what they do not prove, and how to read a test claim properly.
Failure modes
Why fatigue cracks, impact damage, spoke separation and hub clamping issues are prevented by specifying the wheel around the load case.
Brake clearance
Why caliper clearance and no-spacer fitment have to be planned in the wheel drawing, not corrected after delivery.
2-Year StructuralWarranty
CSF-R is covered for 2 years upon delivery or collection against defects in structural integrity, subject to LFI's full warranty terms and exclusions.
What it covers
The warranty covers defects in structural integrity for 2 years upon delivery or collection, subject to LFI's full warranty terms.
What to check
Coverage is limited by the full warranty terms, including exclusions for impact damage, misuse, improper tyre use, road hazards, unauthorised repair, refinishing, heating, bending, cutting or welding.
Actual Google Review Excerpts
Brock Mitchell
★★★★★LFI built a set of forged wheels for my track car. The fitment was spot-on. Brake clearance was handled without spacers. The weight difference was immediately noticeable on turn-in.
Read on GoogleIan Tan
★★★★★Kenny walked me through the whole specification process. Every dimension was confirmed against my car before production started. Wheels arrived exactly as planned.
Read on GoogleGerald Tan
★★★★★Third set from LFI. Each time the fitment has been perfect. The engineering conversation before ordering is what sets them apart from catalogue wheel sellers.
Read on GoogleCSF-RQuestions
Is CSF-R built to order?
Yes. Every CSF-R set is forged and machined around your specific vehicle: diameter, width, offset, brake clearance, load target, bolt pattern, centre bore, concavity and finish are all confirmed before production.
How much does CSF-R weigh?
See the approximate weight table above where available. Final weight depends on width, offset, bolt pattern, brake clearance, load target, material and machining depth. Verified weight is confirmed on the finished wheel.
What material is used for CSF-R?
CSF-R is forged from 6061-T6 aluminium and machined around the final vehicle specification.
Can CSF-R clear big brakes without spacers?
Yes, when the final specification is drawn around the actual brake package. LFI checks spoke shape, backpad, barrel clearance, balancing-weight clearance, centre profile and offset before production.
Can CSF-R be used for track or fast-road driving?
Yes, subject to load target confirmation. LFI reviews vehicle mass, tyre package, braking load, road surface, load rating and optional reinforcement details before confirming a fast-road or track specification.
What information does LFI need to start a CSF-R build?
Share the vehicle model, current wheel and tyre sizes, brake package, ride height, intended use, stance direction, finish direction and any load or track-use requirements.
Can I choose custom finishes?
Yes. LFI can quote gloss, satin, brushed, polished, black, silver, bronze, body-colour and selected custom finishes depending on the final specification and production route.
Does CSF-R include warranty?
Yes. LFI CSF-R Racing Forged Wheel is covered for 2 years upon delivery or collection against defects in structural integrity, subject to LFI's full warranty terms and exclusions.
How does LFI support Singapore, USA and international orders?
Singapore builds can be planned directly with LFI. US and international customers can order in English through WhatsApp or email by sending vehicle photos, brake details, current wheel and tyre sizes, ride height, fitment goals, intended use and delivery ZIP/postcode.
Build CSF-R Around Your Car
Send LFI your exact model, year, brake package, current tire size, target wheel diameter, preferred stance, use case, and finish direction. LFI will confirm whether CSF-R is the right Performance Series direction before production.