Reference tested
CSF1 19x9 ET29 was tested to JWL Aug. 2014 Test Conditions for Light Alloy Road Wheels for Passenger Car at a stated 690 kg wheel load rating.
LFI CSF1 V3 Racing Forged Wheel
$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 / Racing Forged
LFI CSF1 V3Racing Forged Wheel
Five Y-spokes. I-beam sections. Frontal pocketing that cuts weight, not structure. CSF1 V3 is a 6061-T6 monoblock forged wheel that does road, track, supercar and heavy EV duty, specified to your car's brakes, tyres and load target.
Starting from USD 420 per wheel
Classic 5YPerformance Forged
CSF1 V3 takes the five-spoke template and builds it properly. I-beam spoke sections. Raised rails. Face-side pockets that pull mass out of the spoke surface without touching the load path. It looks clean because the engineering is clean.
Classic 5Y spoke layout
The five Y-shaped spoke pairs give the wheel a timeless motorsport face, broad brake visibility and a stance that works on compact cars, performance sedans, supercars and EVs.
I-beam spoke logic
Raised rails and a centre rib form an I-beam section. Material sits at the edges where it resists bending. The middle does less work, so we pocket it out.
Frontal pocketing
Face-side pockets pull shallow mass out of the spoke. The load path stays intact. The wheel does not get fragile.
I-Beam SpokesUseful Pocketing
The spokes are not flat. Each Y-arm has a raised outer rail and a central spine, forming an I-beam section. Material at the edges resists bending. The middle gets pocketed.
The frontal pockets do the reverse: they pull mass from the spoke face, open up the brake windows, and leave the hub-to-rim load path alone.
Same architecture, different jobs. Light enough for a MINI or GR86. Strong enough for a track-prepped M3 when the load target is dialled up. Big enough for supercar and EV builds where brake clearance and mass both run high.
ηspoke = useful stiffness / finished wheel mass
Final specification
Final strength and mass depend on your car's diameter, width, offset, brake clearance, load target and tyre choice. CSF1 V3 starts with the architecture; we confirm the numbers around your vehicle.
CSF1 V3Product Views
Studio shots of the 5Y face, I-beam rails, pocketing and barrel transition. Final width, offset, centre bore, load target and finish are confirmed per car.
CSF1 HasReport-Backed Testing
CSF1 has a physical reference test behind it. The reference wheel is CSF1 19x9 ET29 5x112, tested at 690 kg under JWL Aug. 2014 conditions through a TÜV SÜD accredited lab route.
Named lab route
The reference report follows a TÜV SÜD accredited laboratory route. Custom sets get their own load, brake, tyre and fitment review before production.
Every custom CSF1 set gets its own load, brake, tyre and fitment review. The reference test proves the design family has been physically validated. Custom specs are built to the same standards, not the same part number.
Stress AndDisplacement Proof
One sample: CSF1 V3 in 19x8J ET+38. Four load cases: radial load, tyre pressure, sidewall reaction and angular torque. Max stress: 98.4 MPa against a 104 MPa threshold. Max displacement: 2.1 mm.
19x8JSample CSF1 V3 ET+38 report specification
98.448 MPaMaximum stress concentration reported
104 MPaConservative design stress threshold
2.103 mmMaximum displacement reported
This is one sample result, not a guarantee for every size. Your wheels get their own specification review before production.
ApproximateCSF1 V3 Weights
Approximate weights by size. Final mass depends on your width, offset, bolt pattern, brake clearance, load target and finish.
| 16 inch | Weight | 17 inch | Weight | 18 inch | Weight | 19 inch | Weight | 20 inch | Weight | 21 inch | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 16x5.5J | 4.59 kg / 10.1 lb | 17x6.5J | 5.82 kg / 12.8 lb | 18x7J | 6.22 kg / 13.7 lb | 19x7.5J | 8.12 kg / 17.9 lb | 20x8J | 8.13 kg / 17.9 lb | 21x8J | 8.98 kg / 19.8 lb |
| 16x6J | 4.78 kg / 10.5 lb | 17x7J | 6.01 kg / 13.2 lb | 18x7.5J | 6.41 kg / 14.1 lb | 19x8J | 8.31 kg / 18.3 lb | 20x8.5J | 8.32 kg / 18.3 lb | 21x8.5J | 9.17 kg / 20.2 lb |
| 16x6.5J | 4.97 kg / 11.0 lb | 17x7.5J | 6.2 kg / 13.7 lb | 18x8J | 6.6 kg / 14.6 lb | 19x8.5J | 8.5 kg / 18.7 lb | 20x9J | 8.51 kg / 18.8 lb | 21x9J | 9.36 kg / 20.6 lb |
| 16x7J | 5.16 kg / 11.4 lb | 17x8J | 6.39 kg / 14.1 lb | 18x8.5J | 6.79 kg / 15.0 lb | 19x9J | 7.8 kg / 17.2 lb | 20x9.5J | 8.7 kg / 19.2 lb | 21x9.5J | 9.55 kg / 21.1 lb |
| 16x7.5J | 5.35 kg / 11.8 lb | 17x8.5J | 6.58 kg / 14.5 lb | 18x9J | 6.98 kg / 15.4 lb | 19x9.5J | 7.99 kg / 17.6 lb | 20x10J | 8.89 kg / 19.6 lb | 21x10J | 9.74 kg / 21.5 lb |
| 16x8J | 5.54 kg / 12.2 lb | 17x9J | 6.77 kg / 14.9 lb | 18x9.5J | 7.17 kg / 15.8 lb | 19x10J | 8.3 kg / 18.3 lb | 20x10.5J | 9.11 kg / 20.1 lb | 21x10.5J | 9.96 kg / 22.0 lb |
| 17x9.5J | 6.96 kg / 15.3 lb | 18x10J | 7.45 kg / 16.4 lb | 19x10.5J | 8.49 kg / 18.7 lb | 20x11J | 9.3 kg / 20.5 lb | 21x11J | 10.15 kg / 22.4 lb | ||
| 17x10J | 7.15 kg / 15.8 lb | 18x10.5J | 7.64 kg / 16.8 lb | 19x11J | 8.68 kg / 19.1 lb | 20x11.5J | 9.49 kg / 20.9 lb | 21x11.5J | 10.34 kg / 22.8 lb | ||
| 18x11J | 7.83 kg / 17.3 lb | 19x11.5J | 8.87 kg / 19.6 lb | 20x12J | 9.68 kg / 21.3 lb | 21x12J | 10.53 kg / 23.2 lb | ||||
| 18x11.5J | 8.02 kg / 17.7 lb | 19x12J | 9.06 kg / 20.0 lb | 20x12.5J | 9.87 kg / 21.8 lb | 21x12.5J | 10.72 kg / 23.6 lb | ||||
| 18x12J | 8.21 kg / 18.1 lb | 19x12.5J | 9.25 kg / 20.4 lb | 20x13J | 10.06 kg / 22.2 lb | 21x13J | 10.91 kg / 24.1 lb |
CSF1 V3Build Data
| Specification | CSF1 V3 value | Fitment note |
|---|---|---|
| Model | LFI CSF1 V3 Racing Forged Wheel | Performance Series 6061-T6 monoblock forged wheel. |
| Construction | Monoblock forged aluminum wheel | One-piece forged layout for low mass, direct response and clean load transfer. |
| Material | 6061-T6 forged aluminum | Material and final machining depth are 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 | Classic 5Y motorsport spoke layout | Five Y-shaped spoke pairs create open brake visibility and a timeless performance face. |
| Spoke architecture | I-beam spoke shaping with raised side rails | Material sits at the spoke edges and central rib to resist bending. |
| Weight reduction | Frontal pocket machining | Face-side pockets remove shallow spoke mass while preserving the main hub-to-rim load path. |
| Diameter range | 16 to 21 inch | Diameter is selected around brake package, tire package, vehicle use and stance. |
| Width range | 5.5J to 13J | Width is matched to tire support, fender clearance, concavity and intended use. |
| Offset range | ET -44 to ET +70 | Offset is reviewed with brake envelope, hub position, suspension clearance and face depth. |
| Load target | Commonly 690–890 kg per wheel; selected high-load specifications up to 1050 kg after engineering review. | Load target is confirmed against vehicle mass, use case, tire package and road or track duty. |
| Reference mass range | Approx. 4.6 to 10.9 kg per wheel | Planning range by size before final width, offset, PCD, brake clearance and load target changes. |
| Brake clearance | Built to order | Spoke profile, backpad, barrel shape and balancing-weight clearance are checked around the caliper. |
| Reference tested specification | CSF1 19x9 ET29 5x112, 690 kg | JWL Aug. 2014 reference test through a TÜV SÜD accredited lab route. |
| Sample FEA result | 19x8J ET+38; 98.4 MPa max stress; 2.1 mm max displacement | Sample result shown for one CSF1 V3 specification. |
| Warranty | 2-year CSF1 V3 structural warranty | Subject to LFI warranty terms at Warranty. |
| Starting price by diameter | USD 420 to USD 540 per wheel | Schema includes six diameter starting offers before final width, offset, finish and load-target confirmation. |
CSF1 V3 vsTypical Lightweight Forged Wheels
A five-spoke is only the starting point. CSF1 V3 earns the look with I-beam sections, face-side pocketing and fitment drawn around the car, not a catalogue.
| Decision area | Typical aftermarket approach | CSF1 V3 direction |
|---|---|---|
| Design intent | Often selected for a lightweight look or a catalogue fitment that broadly clears the car. | CSF1 V3 is a classic 5Y Performance Series wheel: super-lightweight, strong, open around the brakes and drawn around the vehicle. |
| Spoke architecture | May use flat or thin visual spokes that look light but do not clearly show where the load path lives. | I-beam spoke sections, raised side rails and a central rib put material at the edges where it resists bending. |
| Weight reduction | Some wheels chase weight by visually thinning the whole spoke or removing material broadly. | Frontal pocketing removes shallow face mass while the main spoke path, hub transition and rim connection remain purposeful. |
| Brake and tyre package | Generic offsets can need spacer correction when caliper clearance, face profile and tyre position do not line up. | Width, offset, centre bore, caliper envelope, spoke profile, tyre support and load target are planned together before machining. |
| Best use case | Style-led road builds or broad aftermarket replacements where the wheel is mostly a visual upgrade. | Road, fast-road, track, supercar and EV builds where low mass, strength, brake clearance and exact fitment all matter. |
ApplicationsAnd Fitment
Fitment by application.
| Area | CSF1 V3 direction | Engineering note |
|---|---|---|
| Road and fast-road | Clean stance, practical tire support, hub-centric machining and brake clearance | Recommended when response, lower unsprung mass and repeatable road manners matter. |
| Track-minded builds | Load target review, optional knurled beads, optional annular ribs and tire slip control | Useful for sticky tires, hard braking, circuit use and repeated heat cycles. |
| Supercar builds | Large brake envelope, wide tire support, concavity and face-depth control | CSF1 V3 can scale into high-performance applications when brake and load data are confirmed. |
| EV and high-load road cars | Higher vehicle mass, load reserve, tire package and road-impact margin | Use the final load target rather than diameter alone to confirm the wheel specification. |
| Brake clearance | Supports large brake systems, including 380 mm and 400 mm setups | Final spoke profile, barrel clearance and balancing-weight space are checked against the actual caliper template. |
| TPMS transfer | OEM TPMS compatible | The final valve seat and sensor clearance are reviewed so factory TPMS sensors can be transferred where the vehicle system supports it. |
| Brake clearance method | Caliper envelope, spoke profile, backpad and barrel clearance review | The target is to machine the wheel around the car instead of relying on spacer correction. |
| Concavity method | Width, offset, brake package and forging blank dependent | Concavity is balanced against caliper clearance, tire position and structural reserve. |
Fitment PlanningFor Your Build
Custom forged wheels Singapore
LFI plans each CSF1 V3 set from Singapore around the car's brake package, tyre target, ride height, offset window, load target, centre bore, TPMS transfer 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 CSF1 V3 specification remotely, supports DDP shipping where available, and coordinates production updates before dispatch.
Cars ThatMake Sense
CSF1 V3 fits wherever five spokes, low mass and proper brake clearance belong. Compact road cars. Track builds. Supercars. EVs. Same wheel logic, different load target.
Compact performance
MINI F56 / F57, Toyota GR86, Toyota GT86 ZN6, Civic Type R FL5, MX-5 ND and MX-5 NC builds reward lower unsprung mass and exact tyre support.
European performance
Porsche Cayman / Boxster, BMW 3 Series G20, BMW M2 G87, BMW M3 / M4 G80 G82, Audi RS5 and Mercedes-AMG GT builds need brake clearance and offset accuracy to work together.
Supercars and EVs
Mercedes-AMG GT, Porsche Cayman / Boxster, performance EVs and high-load road cars can use CSF1 V3 when brake clearance, load rating, tyre package and centre profile are reviewed together.
More ProofBehind The Spec
More on the engineering behind CSF1 V3.
Combined-load FEA
Why radial load alone is not enough for wheel design, and how braking, cornering and combined loads change the engineering picture.
Bespoke FEA reports
How LFI reviews custom forged wheel specifications with material inputs, load cases, stress maps, displacement plots and optional report documentation.
Testing & compliance
CSF1 has a named 19x9 ET29 reference test under JWL Aug. 2014 conditions through a TÜV SÜD accredited lab route, with custom builds still reviewed to the final specification.
Forged wheel value
A buyer-facing guide to when forged wheels matter: weight, stiffness, fitment accuracy, brake clearance and long-term build quality.
2-Year StructuralWarranty
CSF1 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.
Width, OffsetAnd Face Depth
Use the LFI slider to see how width, diameter and offset affect face depth before CSF1 V3 is drawn around brake clearance, tyre position and the final vehicle stance.
Performance-FriendlyDetail Options
| Option | Availability | When it matters |
|---|---|---|
| Anti-slip knurled beads | Optional | Helps reduce tire movement on high-grip applications, including track use, hard braking, drag launches and sticky tire setups. |
| Annular reinforcement ribs | Optional | Can add rigidity where the final vehicle specification, road condition, tire package or load target calls for additional reserve. |
Actual Google Review Excerpts
What LFI customers say.
Brock Mitchell
5/5 Google review
I reached out to LFI for a set of wheels for my BMW X3M. I was looking for a clean motorsport look with an ultimate goal of lightweight. After some back and forth I landed on a set of TRS01 in a 20"/18" combo. Delivery took roughly 7.5 weeks from the date of my order and everything arrived sound.
Google reviewIan Tan
5/5 Google review
Fantastic designs, even greater people behind the company. Kevin and Joshua are amazing people who give really good advice on the looks, cuts, sizing and offsets. They are good with how to build the best mechanically appropriate rims for your car.
Google reviewGerald Tan
5/5 Google review
Fantastic designs, quality, and delivery time. This is the second set of custom rims I've made with them and the results are awesome both times. The fitment is always perfect. So, no need for spacers.
Google reviewCSF1 V3In The Shortlist
Compare CSF1 V3 against the wider forged-wheel field before locking a track, fast-road or EV brief.
Brand comparison
See where APEX, BC Forged and LFI each make sense for a buyer choosing forged wheels.
Related LFI wheel
Compare this product with REX-06 V2 when the brief changes from clean performance to lighter multi-spoke response, or the other way around.
Proof and support
Check FEA, testing, warranty, fitment guides and pricing before sending the final vehicle details.
CSF1 V3 Technical FAQ
What is LFI CSF1 V3?
A 5Y-spoke 6061-T6 monoblock forged wheel. I-beam spoke sections, face-side pocketing, made to your car's width, offset, PCD, brake clearance and load target.
How is CSF1 V3 different from REX-06 V2?
CSF1 V3 uses face-side pocketing and a five-spoke layout for a cleaner look and broader fitment range. REX-06 V2 uses side-through beam pocketing for a more aggressive weight cut. If you want versatility across road, track and EV, start with CSF1 V3. If weight is the only target, look at REX-06 V2.
What sizes can CSF1 V3 be built in?
CSF1 V3 is planned across 16 to 21 inch applications. Width, offset, centre bore, bolt pattern and brake clearance are confirmed per vehicle before production.
How heavy is CSF1 V3?
Depends on your spec. The table ranges from about 4.6 kg at 16x5.5J to 10.9 kg at 21x13J. Final weight is confirmed when your width, offset and load target are locked.
Which cars suit CSF1 V3?
Hot hatches, compact performance cars, GR Yaris, GR86, GT86, Civic Type R, MINI, BMW 3 and 4 Series, Audi S and RS, Porsche Cayman, Lexus IS, supercars and heavier EV builds.
Can CSF1 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 CSF1 V3 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.
Has CSF1 V3 been TÜV SÜD tested?
Yes. CSF1 19x9 ET29 was tested to JWL Aug. 2014 conditions at 690 kg through a TÜV SÜD accredited lab. Every custom CSF1 set gets its own load, brake and fitment review.
What load target can CSF1 V3 support?
Commonly 690–890 kg per wheel; selected high-load specifications up to 1050 kg after engineering review. Final load target depends on vehicle mass, tyre package and use case.
Does CSF1 V3 have a sample FEA report?
Yes. One sample report covers CSF1 V3 in 19x8J ET+38. Max stress: 98.4 MPa against a 104 MPa threshold. Max displacement: 2.1 mm. It passed all four load cases in the sample report.
Can CSF1 V3 use enhanced concavity?
Yes, where the wheel width, offset, brake package and forging blank allow it. Concavity is balanced against caliper clearance, suspension clearance, tyre position and structural reserve.
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 CSF1 V3 include warranty?
Yes. CSF1 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 information does LFI need to start a CSF1 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. LFI uses that brief to propose the wheel specification.
How does LFI support Singapore, USA and international CSF1 V3 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. LFI confirms the CSF1 V3 specification remotely and can quote DDP shipping where supported.
What is CSF1 V3 production and delivery timing?
CSF1 V3 is made to order. The 42-56 day handling window refers to forged wheel production, machining, finishing and final QC before dispatch. Transit is commonly 5-21 days depending on destination, shipping service and whether DDP shipping is available.
Start The Build
Build CSF1 V3 Around Your Car
Send LFI your vehicle, brake package, current wheel and tyre size, ride height, and how you use the car. We'll confirm whether CSF1 V3 is the right wheel before production.