CSF8 is for the driver who wants the wheel to sharpen the whole side profile of the car. It has enough bite for a stance build while staying within the Performance forged line.

CSF8 works well when concavity, finish, and offset are doing visual work. It is a good candidate for lowered cars, wider tires, and owners who want a clean but noticeable upgrade. The current table spans roughly 4.7 to 11.8 kg depending on size, so smaller fitments favor response while larger fitments add stance and load reserve.
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 for coupes, compact sedans, modified hatchbacks, and cars where stance and brake clearance both matter.
These product views show the design language for CSF8. Final width, offset, center bore, load rating, finish, and concavity are confirmed around your car before production.
CSF8 is shaped for customers who want a performance forged wheel with enough brake clearance and spoke structure for real road or track use.
This sharp street stance wheel is ordered around the car's tire width, brake package, ride height, offset target, and finish direction.
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 | 4.74 kg / 10.4 lb | 17x6.5J | 5.97 kg / 13.2 lb | 18x7J | 7.01 kg / 15.5 lb | 19x7.5J | 8.05 kg / 17.7 lb | 20x8J | 9.09 kg / 20.0 lb | 21x8J | 9.94 kg / 21.9 lb |
| 16x6J | 4.93 kg / 10.9 lb | 17x7J | 6.16 kg / 13.6 lb | 18x7.5J | 7.2 kg / 15.9 lb | 19x8J | 8.24 kg / 18.2 lb | 20x8.5J | 9.28 kg / 20.5 lb | 21x8.5J | 10.13 kg / 22.3 lb |
| 16x6.5J | 5.12 kg / 11.3 lb | 17x7.5J | 6.35 kg / 14.0 lb | 18x8J | 7.39 kg / 16.3 lb | 19x8.5J | 8.43 kg / 18.6 lb | 20x9J | 9.47 kg / 20.9 lb | 21x9J | 10.32 kg / 22.8 lb |
| 16x7J | 5.31 kg / 11.7 lb | 17x8J | 6.54 kg / 14.4 lb | 18x8.5J | 7.58 kg / 16.7 lb | 19x9J | 8.62 kg / 19.0 lb | 20x9.5J | 9.66 kg / 21.3 lb | 21x9.5J | 10.51 kg / 23.2 lb |
| 16x7.5J | 5.5 kg / 12.1 lb | 17x8.5J | 6.73 kg / 14.8 lb | 18x9J | 7.77 kg / 17.1 lb | 19x9.5J | 8.81 kg / 19.4 lb | 20x10J | 9.85 kg / 21.7 lb | 21x10J | 10.7 kg / 23.6 lb |
| 16x8J | 5.69 kg / 12.5 lb | 17x9J | 6.92 kg / 15.3 lb | 18x9.5J | 7.96 kg / 17.5 lb | 19x10J | 9 kg / 19.8 lb | 20x10.5J | 10.04 kg / 22.1 lb | 21x10.5J | 10.89 kg / 24.0 lb |
| 17x9.5J | 7.11 kg / 15.7 lb | 18x10J | 8.15 kg / 18.0 lb | 19x10.5J | 9.19 kg / 20.3 lb | 20x11J | 10.23 kg / 22.6 lb | 21x11J | 11.08 kg / 24.4 lb | ||
| 17x10J | 7.3 kg / 16.1 lb | 18x10.5J | 8.34 kg / 18.4 lb | 19x11J | 9.38 kg / 20.7 lb | 20x11.5J | 10.42 kg / 23.0 lb | 21x11.5J | 11.27 kg / 24.8 lb | ||
| 18x11J | 8.53 kg / 18.8 lb | 19x11.5J | 9.57 kg / 21.1 lb | 20x12J | 10.61 kg / 23.4 lb | 21x12J | 11.46 kg / 25.3 lb | ||||
| 18x11.5J | 8.72 kg / 19.2 lb | 19x12J | 9.76 kg / 21.5 lb | 20x12.5J | 10.8 kg / 23.8 lb | 21x12.5J | 11.65 kg / 25.7 lb | ||||
| 18x12J | 8.91 kg / 19.6 lb | 19x12.5J | 9.95 kg / 21.9 lb | 20x13J | 10.99 kg / 24.2 lb | 21x13J | 11.84 kg / 26.1 lb |
These optional forged wheel details are confirmed during fitment planning for CSF8 builds where face depth, tire slip resistance, or structural reinforcement needs to be considered.
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.
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.
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.



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.
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.
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.

Knurled bead seats can help reduce tire movement on higher-grip applications, including track use, hard braking, drag launches, and sticky tire setups.
Reinforcement ribs can add barrel rigidity where the final specification, road conditions, tire package, or vehicle load calls for extra reserve.
Yes. LFI confirms width, offset, bolt pattern, center bore, brake clearance, finish, load rating, and optional machining details before production.
Yes. The table uses existing model-specific weight data where available, then estimates nearby sizes for planning. Final weight is confirmed after the actual specification is engineered.
Yes. LFI reviews tire package, braking load, vehicle mass, surface conditions, and the selected load rating before confirming a track or fast-road build.
Yes, where the wheel size, offset, brake package, and forging blank allow it. Enhanced concavity is an optional cost upgrade and must be checked per vehicle.
Yes. LFI can quote gloss, satin, brushed, polished, black, silver, bronze, body-color, and selected custom finishes depending on the wheel design and production route.
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 CSF8 is the right Performance Series direction before production.

