Sharper response
Lower wheel mass helps steering response, braking feel and damper control, especially on lighter road and track platforms.
LFI CSF1M V3 Magnesium Forged Wheel
$1,179.00
Price per Wheel
MaterialAZ80A-T6 magnesium
Sizing18-21 inch
Width7.5J to 13J
OffsetDesign dependent
Load targetUp to 890 kg
Forging15,000-ton forged
Magnesium Forged Series
CSF1M V3Magnesium Forged
CSF1M V3 is the magnesium option for drivers who want the car to feel lighter immediately: quicker steering, cleaner braking feel, and less mass for the suspension to control.
WhyMagnesium
CSF1M V3 takes the 5Y CSF1 V3 architecture and forges it in magnesium. The goal is a visibly light, open-face wheel for cars that respond sharply to lower rotating mass: GR86, GT86, MX-5, MINI, Cayman, Elise and lightweight BMW M builds.
Magnesium forged wheels are not for every build. They are lighter than aluminium - approximately 20-30% less mass at equivalent specification - but they demand a different ownership conversation.
The protective coating is critical. Stone chips, kerb damage and harsh cleaning chemicals can compromise the surface and expose the substrate. Road salt accelerates the process. A magnesium wheel used on a daily-driven car in a winter-salt environment needs more attention than the same wheel on a weekend car stored indoors.
For the right owner - a driver who wants the lightest 5Y forged wheel direction, keeps the car clean, inspects the wheels regularly and understands the material - CSF1M V3 is the answer. For a daily driver parked outdoors, the aluminium CSF1 V3 is usually the better long-term choice.
Engineering note
ρmagnesium ≈ 1,740–1,830 kg/m³
ρaluminium 6061-T6 ≈ 2,700 kg/m³
Mass reduction ≈ 25–35% at equivalent geometry, before machining differences.
ρaluminium 6061-T6 ≈ 2,700 kg/m³
Mass reduction ≈ 25–35% at equivalent geometry, before machining differences.
Density comparison. Final mass also depends on width, offset, brake clearance and load target.
LightweightWith Discipline
CSF1M V3 carries classic 5Y architecture into a magnesium construction. The goal is not a brochure number; the goal is lower unsprung mass with brake clearance, fitment support and load planning still tied to the exact car.
Material trade-off understood
Magnesium needs more attentive coating care and inspection than aluminium. LFI frames the choice honestly before ordering.
Fitment locked before production
PCD, centre bore, brake envelope, width, offset, tyre target, load requirement and finish are confirmed before production.
AZ80A-T6magnesium alloy monobloc
15,000thigh-pressure forged construction
890 kgload rating target
From USD 1240starting price
5YMagnesium
CSF1M V3 is the CSF1 V3 5Y architecture recast in magnesium: open spokes, clear brake visibility, low visual mass and a compact face that suits smaller sports cars as much as serious track builds.
This wheel makes the most sense where the car is sensitive to rotating mass and the owner wants a simple, purposeful 5Y face. GR86. GT86. MX-5. MINI. Cayman. Lightweight BMW M and track-day builds. Cars where the wheel should make the chassis feel lighter, not just look expensive.
For larger European sedans and coupes that visually suit a paired twin-spoke face, CSF2M V2 may be the better magnesium direction.
CSF1M V3Best Fit
Ideal for lightweight hatchbacks, GR cars, Civic Type R, MX-5, Lotus, Porsche Cayman, and compact track builds.
01
Lower unsprung mass.
Lower wheel mass can improve steering response, braking feel, acceleration, and suspension control.
02
Performance-specific material.
AZ80A-T6 magnesium is used where the build priority is weight reduction with real structural review.
03
Custom fitment.
Width, offset, bolt pattern, center bore, brake clearance, and finish are confirmed before production.
ApproximateCSF1M V3 Weights
Approximate weight excludes center cap and valve. Final weight changes with width, offset, bolt pattern, brake clearance, load rating, and machining depth.
| 18 inch | Weight | 19 inch | Weight | 20 inch | Weight | 21 inch | Weight |
|---|---|---|---|---|---|---|---|
| 20x8J | 6.8 kg / 15 lb | 21x8J | 7.7 kg / 17 lb | ||||
| 19x8J | 5.9 kg / 13 lb | 20x8.5J | 7.02 kg / 15.5 lb | 21x8.5J | 7.92 kg / 17.5 lb | ||
| 18x8J | 5 kg / 11 lb | 19x8.5J | 6.12 kg / 13.5 lb | 20x9J | 7.25 kg / 16 lb | 21x9J | 8.15 kg / 18 lb |
| 18x8.5J | 5.22 kg / 11.5 lb | 19x9J | 6.35 kg / 14 lb | 20x9.5J | 7.47 kg / 16.5 lb | 21x9.5J | 8.37 kg / 18.5 lb |
| 18x9J | 5.45 kg / 12 lb | 19x9.5J | 6.57 kg / 14.5 lb | 20x10J | 7.2 kg / 15.9 lb | 21x10J | 8.1 kg / 17.9 lb |
| 18x9.5J | 5.67 kg / 12.5 lb | 19x10J | 6.3 kg / 13.9 lb | 20x10.5J | 7.42 kg / 16.4 lb | 21x10.5J | 8.32 kg / 18.3 lb |
| 18x10J | 5.4 kg / 11.9 lb | 19x10.5J | 6.52 kg / 14.4 lb | 20x11J | 7.65 kg / 16.9 lb | 21x11J | 8.55 kg / 18.8 lb |
| 18x10.5J | 5.62 kg / 12.4 lb | 19x11J | 6.75 kg / 14.9 lb | 20x11.5J | 7.87 kg / 17.4 lb | 21x11.5J | 8.77 kg / 19.3 lb |
| 18x11J | 5.85 kg / 12.9 lb | 19x11.5J | 6.97 kg / 15.4 lb | 20x12J | 8.1 kg / 17.9 lb | 21x12J | 9 kg / 19.8 lb |
| 18x11.5J | 6.07 kg / 13.4 lb | 19x12J | 7.2 kg / 15.9 lb | 20x12.5J | 8.32 kg / 18.3 lb | 21x12.5J | 9.22 kg / 20.3 lb |
| 18x12J | 6.3 kg / 13.9 lb | 19x12.5J | 7.42 kg / 16.4 lb | 20x13J | 8.55 kg / 18.8 lb | 21x13J | 9.45 kg / 20.8 lb |
| 18x12.5J | 6.52 kg / 14.4 lb | 19x13J | 7.65 kg / 16.9 lb | ||||
| 18x13J | 6.75 kg / 14.9 lb |
Forging Profile Option
EnhancedConcavity
LFI concave profiles are built around wheel width, offset, diameter, brake clearance, and forging depth. The goal is to push the face as deep as the car allows, without compromising fitment, caliper clearance, or structural integrity.
Three concavity levelsOffset-sensitive designCost option
Maximum Concave Face
The Maximum Concave Face option is available for selected LFI magnesium forged wheel designs. Depending on wheel width and offset, the face profile can be tuned from mild concave to a deeper spoke drop.
Wider wheels and lower offsets generally allow stronger concavity. Final availability depends on the vehicle body, suspension, brake package, and selected forging blank.
Three Concavity Levels
Concavity is not selected by diameter alone. The final face depth is calculated from the full fitment package.
The exact concavity level is confirmed during fitment planning.
Anti-Slip Knurled Beads
Knurled bead seats can help reduce tire movement during hard acceleration, braking, cornering, drag launches, and sticky tire use.
Annular Reinforcement Ribs
Reinforcement ribs can improve stiffness, stress distribution, and durability where the vehicle load, tire package, or road conditions call for extra reserve.
Fitment PlanningFor Your Build
Custom forged wheels Singapore
LFI plans each CSF1M V3 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 CSF1M V3 specification remotely and supports DDP shipping where available.
Cars ThatReward Low Mass
CSF1M V3 fits lightweight platforms and focused performance cars where a clean 5Y face and lower rotating mass both matter.
Lightweight sports cars
Toyota GR86, GT86, MX-5 ND, Lotus Elise. Low vehicle mass plus low unsprung mass is the point.
Compact performance cars
Civic Type R FL5, MINI Cooper F56/F57, GR Yaris. Smaller faces, lighter tyres and brake-clearance planning suit the 5Y architecture.
Focused track builds
Porsche Cayman / Boxster, BMW M2 G87, BMW M3/M4. Big brakes and low mass, specified together.
More ProofBehind The Spec
More on the engineering checks behind CSF1M V3 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 - Magnesium
CSF1M V3 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.
Magnesium requires more attentive care than aluminium. Stone chips, kerb contact, harsh chemicals and road-salt exposure can compromise the protective coating. Damage from neglect, impact or improper cleaning is not covered under structural or finish warranty.
CSF1M V3Questions
Is CSF1M V3 built to order?
Yes. Every CSF1M V3 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 CSF1M V3 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 CSF1M V3?
CSF1M V3 is forged in magnesium for lower mass than the aluminium equivalent. Magnesium needs attentive care: avoid harsh chemicals, repair coating chips promptly and inspect the wheel after impacts or kerb contact.
Can CSF1M V3 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 CSF1M V3 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 CSF1M V3 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 CSF1M V3 include warranty?
Yes. LFI CSF1M V3 Magnesium 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.
Start the Build
Build CSF1M V3 Around Your Car
Send LFI your exact model, brake photos, tire target, ride height, current wheel spec, and stance direction. LFI will confirm the cleanest magnesium forged specification before production.
Talk to LFI on WhatsApp