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.

CSF1M V3 is best when the design goal is low unsprung weight before visual drama. It suits serious road and track cars where tire feel and response matter more than a heavy show-wheel look. The current table spans roughly 5 to 9.4 kg depending on size, so smaller fitments favor response while larger fitments add stance and load reserve.
This lightest-feeling magnesium all-rounder is chosen when lower rotating mass is the point. Width, offset, brake room, bolt pattern, center bore, concavity, and finish are set once the car and tire package are known.
Ideal for lightweight hatchbacks, GR cars, Civic Type R, MX-5, Lotus, Porsche Cayman, and compact track builds.
Ideal for lightweight hatchbacks, GR cars, Civic Type R, MX-5, Lotus, Porsche Cayman, and compact track builds.
Lower unsprung mass.
Lower wheel mass can improve steering response, braking feel, acceleration, and suspension control.
Performance-specific material.
AZ80A-T6 magnesium is used where the build priority is weight reduction with real structural review.
Custom fitment.
Width, offset, bolt pattern, center bore, brake clearance, and finish are confirmed before production.
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 |
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.
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.
Concavity is not selected by diameter alone. The final face depth is calculated from the full fitment package.



Knurled bead seats can help reduce tire movement during hard acceleration, braking, cornering, drag launches, and sticky tire use.
Reinforcement ribs can improve stiffness, stress distribution, and durability where the vehicle load, tire package, or road conditions call for extra reserve.
Yes. CSF1M V3 is a magnesium forged monobloc wheel using AZ80A-T6 magnesium alloy as the material route.
CSF1M V3 is made to order within the size and width range shown on this page, with final width, offset, bolt pattern, center bore, brake clearance, load rating, and finish chosen around your car.
Weight depends on diameter, width, offset, bolt pattern, center profile, brake clearance, load rating, and machining depth. Use the table as a realistic planning guide before the final build spec is locked in.
Yes. LFI reviews tire package, braking load, vehicle mass, road surface, brake clearance, and load rating before confirming a track or fast-road magnesium build.
Yes. LFI magnesium forged wheels include a 2-year warranty against structural defects.
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.
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