LFI SC04 Signature Concave Forged Wheel

Signature Concave Series LFI SC04Signature Concave Forged Wheel A directional-spoke signature concave monoblock forged wheel with a forward-rotating face. Forward-rotating spoke sweep paired with a concave face. For drivers who want directional energy without the Infinite Concave price point. Starting from USD 480 per wheel ★★★★★4.7 Google rating - 53 reviews across LFI custom forged wheel buildsRead Google reviews 6061-T6 forged aluminium 16 to 21 inch applications Brake clearance planned per car Width, offset, centre bore and finish built to order Plan FitmentAsk LFI SC04 product reference. Fitment, brake clearance, load target and finish are locked before the blank is cut. 12,000tforged monoblock construction 1050 kgload rating target 19-24 inchmade-to-order size range From USD 420starting price Design Philosophy SC04Design Direction A directional-spoke signature concave monoblock forged wheel with a forward-rotating face. Forward-rotating spoke sweep paired with a concave face. For drivers who want directional energy without the Infinite Concave price point. Signature concave face profile The face profile, brake clearance and machining depth are shaped around the chassis and stance. Fitment locked before machining Width, offset and face profile are drawn around your car's stance and brake clearance. The engineering is confirmed before the machine starts. Concavity Setup Deep FaceReal Fitment Concavity is not a fixed look across every size. A wider wheel, lower offset, and compatible brake package can unlock a deeper face, while tighter cars may need a cleaner profile for clearance. 01 Concave stance. The face depth is selected around the car, tire, brake package, and offset target. 02 Forged strength. 6061-T6 forged construction keeps the wheel strong while allowing detailed machining. 03 Custom finish. Color, machining, center cap direction, and hardware look are chosen around the build. Forging Detail Options Bead SeatAnd Rib Support SC04 can be specified with functional machining details when the build calls for extra tire grip, stiffness, or repeated high-load use. Anti-slip knurled beads Small machined grooves on the inner bead seat increase mechanical grip between tire and rim, helping reduce tire slip during hard acceleration, braking, cornering, track use, or low-pressure off-road driving. Machined bead-seat texture Better tire-to-wheel grip Track and performance option Cost option Knurled bead-seat machining is hidden once the tire is mounted, but supports tire stability under high load. Annular reinforcement ribs Structural rib features are added where the selected wheel design, forging blank, and engineering package support them. The goal is stiffness and load distribution without simply adding unnecessary wheel mass. Structural rib reinforcement Improved wheel stiffness Stress distribution support No cost option Annular reinforcement ribs help the wheel maintain shape and resist repeated load cycles where the design supports them. When to choose knurling Use knurled beads for track cars, drag builds, heavy EVs, off-road setups, and high-grip tire packages where tire movement on the rim can become a real-world issue. When ribs matter Reinforcement ribs are useful for performance, EV, SUV, off-road, and track-focused builds where wheel stiffness and long-term fatigue resistance matter. Specifications SC04Build Data Specification SC04 value Fitment note Model LFI SC04 Signature Concave Forged Wheel Signature Concave Series 6061-T6 monoblock forged wheel. Construction Monoblock forged aluminium wheel One-piece forged layout for low mass, direct response and clean load transfer. Material forged monoblock Material and final machining depth are reviewed against size, offset and load target. Forging Monoblock forged wheel blank Vehicle-specific machining confirms final width, PCD, centre bore, offset and brake clearance. Design Signature concave face profile The face profile, brake clearance and machining depth are shaped around the chassis and stance. Diameter range 19 to 24 inch Diameter is selected around brake package, tyre package, vehicle use and stance. Width range 8J to 13J Width is matched to tyre support, fender clearance, concavity and intended use. Offset range -44 to +70 Offset is reviewed with brake envelope, hub position, suspension clearance and face depth. Load target Up to 1050 kg Load target is confirmed against vehicle mass, use case, tyre package and road or track duty. Brake clearance Built to order Spoke profile, backpad, barrel shape and balancing-weight clearance are checked around the caliper. Warranty Lifetime structural warranty Subject to LFI warranty terms at Warranty. Starting price USD 480 to USD 580 per wheel Final price confirmed after width, offset, finish and load-target specification. Singapore / USA / Global Support Fitment PlanningFor Your Build Custom forged wheels Singapore LFI plans each SC04 set from Singapore around the car's brake package, tyre target, ride height, offset window, load target, centre bore, TPMS transfer and finish direction. Open LFI on Google Maps 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 SC04 specification remotely, supports DDP shipping where available, and coordinates production updates before dispatch. Custom forged wheels Singapore Vehicle fitment guides Best forged wheels Singapore How to choose a forged wheel maker WhatsApp LFI Vehicle Match Where SC04Makes Sense Concave-focused builds Cars where face depth matters but the extreme Infinite Concave profile is not needed. A balanced concave face that works across a broader offset range. European and Japanese performance BMW 3 Series, Audi RS5, GR Supra, Lexus IS. Platforms where the SC profile suits the car's stance. Hot hatches and coupes Civic Type R, VW Golf GTI/R, MINI Cooper. Compact platforms where the concave face adds visual depth without overwhelming the car's scale. All fitment guides Toyota GR86 BMW M3/M4 Civic Type R Engineering Articles More ProofBehind The Spec More on the engineering behind SC04. Combined-load FEA Why radial load alone is not enough for wheel design, and how braking, cornering and combined loads change the engineering picture. Read FEA article Bespoke FEA reports How LFI reviews custom forged wheel specifications with material inputs, load cases, stress maps, displacement plots and optional report documentation. View FEA reports Testing & compliance How LFI validates forged wheel designs against JWL, VIA and TUV SUD standards, with named reference tests and per-build specification review. View testing page Forged wheel value A buyer-facing guide to when forged wheels matter: weight, stiffness, fitment accuracy, brake clearance and long-term build quality. Read value guide LFI vs APEX LFI vs BC Forged APEX vs BC Forged vs LFI Custom forged wheels Singapore Vehicle fitment guides Warranty Lifetime StructuralWarranty LFI SC04 Signature Concave Forged Wheel is covered by lifetime structural warranty terms 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. Read warranty terms Customer Proof Actual GoogleReview 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 Google Ian 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 Google Gerald 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 Google Read all reviews on Google Product Questions SC04Questions Is SC04 built to order?Yes. Every SC04 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 finalised before machining starts. How much does SC04 weigh?See the approximate weight table above. Final weight depends on your width, offset, bolt pattern, brake clearance, load target and finish. Verified weight is confirmed on the finished wheel. Can SC04 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 SC04 be used for track or fast-road driving?Yes. LFI reviews vehicle mass, tyre package, braking load, road surface, load rating, bead-seat needs and optional reinforcement details before confirming a fast-road or track specification. What information does LFI need to start a SC04 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 SC04 include warranty?Yes. SC04 is covered by lifetime structural warranty terms 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. Start The BuildBuild SC04 Around Your Car Send LFI your exact model, year, brake package, current tyre size, target wheel diameter, preferred stance, use case and finish direction. LFI will confirm whether SC04 is the right forged wheel direction before production. Start SC04 FitmentView Fitment Guides