BYD Sealion 7
Real customer fitments, 5x120 hub architecture, brake-clearance engineering, and load validation for the BYD Sealion 7 — a heavy EV crossover that rewards every kilogram taken off the wheel.
The Sealion 7 is a heavy EV crossover. Factory wheels are built to a cost target, not a performance target. The right forged setup cuts unsprung mass, sharpens steering response, and gives the car a stance that matches its presence — without guessing on offset, clearance, or load.
Square or staggered — decide on data.
The Sealion 7 ships staggered from factory. Square setups simplify rotation and balance. Staggered preserves the OEM rear-track visual. LFI works through both against your exact car.
Brake clearance is engineered, not guessed.
Spoke profile, X-factor, backpad, and barrel shape are checked against the caliper template before machining.
Weight matters more on an EV.
Every kilogram off the wheel reduces rotational inertia. On a heavy battery-pack crossover, that translates directly to steering precision, braking composure, and range efficiency.
| Area | Guide value | Fitment note |
|---|---|---|
| PCD | 5x120 | Verified across all Sealion 7 customer builds to date. |
| Center bore | 64.1 | Hub-centric machining standard for this platform. |
| Wheel sizes | 20x8 ET25 / 20x9 ET32 / 19x8.5 ET30 / 20x7.5 ET20 / 19x8 ET26 | Tire pairing, brake template, and ride height checked per build. |
| Wheel models | CSF1 V3 / CSF6 / MF912 Optimised / MF20 | Face profile selected around caliper clearance and load target. |
Range matters on an EV, but so does presence. This build keeps the wheel at 20 inches for visual authority while pulling the width back to 7.5 inches and pushing the offset to ET20 — less frontal profile, less drag, more range. At 9.0 kg per wheel, the CSF1 V3 drops meaningful rotational mass compared with the factory cast wheel. For the owner who wants the 20-inch look without the efficiency penalty.
Use the LFI Concave Slider from the full guide to see how offset, wheel width and diameter change visual face depth for a custom forged wheel.
Every direction in this table is backed by a real LFI customer build. Before production, LFI confirms brake template, tire shoulder, load target, ride height, and final offset against your specific car.
| Direction | Wheel size | Wheel model | Best for | Notes |
|---|---|---|---|---|
| Primary | 20x8 ET25 / 20x9 ET32 | CSF1 V3 | Real LFI build record | Staggered 20-inch with proven CSF1 V3 face profile. |
| Alternate | 19x8.5 ET30 | CSF6 | Customer-proven direction | Square 19-inch daily setup with strong tire sidewall. |
| Additional | 20x7.5 ET20 | CSF1 V3 | Customer-proven direction | Range-biased 20-inch narrow-width direction. |
Wheel fitment is more than diameter and offset. LFI reviews vertical load, braking and drive torque, spoke-root behavior, hub-pad stress, bolt-seat stress, and combined load cases before final production.
The Sealion 7 is heavy for its size. LFI works from a rear-axle baseline of 1,700 kg — or 850 kg per wheel — cross-checked against BYD's published gross vehicle mass. The preferred customer-facing target is 950 kg per wheel: enough margin for road use, fast driving, and the extra mass of an EV crossover, without overbuilding the wheel.
Wheel strength is not only vertical load. LFI also reviews acceleration, braking, cornering, potholes, tire grip, hub-pad stress, bolt-seat stress, spoke-root stress, and rim-barrel torque reaction against an approximately 2,000 Nm per wheel static torque load target.
If you want the manufacturing side of the process, LFI's How LFI Wheels Are Made page shows the design, forging, CNC machining, finishing, and QC logic behind a custom forged wheel before it ever reaches the car.
| Wheel load rating | Per-axle equivalent | Margin vs axle baseline | Status | How LFI positions it |
|---|---|---|---|---|
| 690 kg | 1380 kg per axle | -19% vs 850 kg/wheel | Red - Low reserve | Use only after exact axle data, tire load, and duty cycle are confirmed. |
| 790 kg | 1580 kg per axle | -7% vs 850 kg/wheel | Red - Low reserve | Use only after exact axle data, tire load, and duty cycle are confirmed. |
| 890 kg | 1780 kg per axle | +5% vs 850 kg/wheel | Red - Low reserve | Use only after exact axle data, tire load, and duty cycle are confirmed. |
| 950 kg | 1900 kg per axle | +12% vs 850 kg/wheel | Green - Preferred | Road-use, fast-road, and daily forged applications. |
| 1050 kg | 2100 kg per axle | +24% vs 850 kg/wheel | Green - Preferred | Road-use, fast-road, heavier tire, and high-load EV applications. |
| 1200 kg | 2400 kg per axle | +41% vs 850 kg/wheel | Blue - Extra reserve | Harsher-road, high-speed, heavy tire, or extra-reserve applications. |
| Validation load case | Reference basis | Suggested LFI target | Why it matters |
|---|---|---|---|
| Radial vehicle load | Vehicle mass, passengers, tire package, and selected wheel load target | 950 kg preferred target; 1050 kg where the selected wheel family allows extra EV reserve | Represents vehicle mass and repeated road loading. |
| Torque load | Conservative 1g dry braking check with 60% front bias | ~2,000 Nm per wheel | Loads the hub pad, bolt seats, spoke roots, and rim barrel. |
| Cornering load | Lateral force from road grip, sticky tires, and fast-road or track use | Application-specific | Shows how the wheel behaves when the chassis loads sideways during aggressive cornering. |
| Combined static load case | Radial load + torque load + cornering load | Application-specific | More realistic than isolated vertical checks because real driving loads rarely occur one at a time. |
Engineering Article
For forged wheel applications, vertical load is only one part of the engineering picture. LFI also reviews spoke-root stress, hub-pad loading, bolt-seat behavior, rim-barrel stress, and combined static road-load cases where relevant.
| Term | Meaning | How it applies to LFI custom wheels |
|---|---|---|
| JWL | Japanese technical standard for light alloy wheels. | Used as a reference standard for relevant load and durability requirements. |
| VIA | Japanese third-party wheel registration and verification system. | Applies only to specific wheel models/specifications that are formally registered. |
| TUV | European technical testing or certification framework. | Applies only when a specific wheel/specification has supporting TUV documentation. |
| SAE | Common industry test framework for aftermarket wheel performance and impact evaluation. | Useful for impact and fatigue validation depending on market and specification. |
| Internal validation | LFI's own engineering and test process. | Used for bespoke specifications built from validated design families. |
| Static FEA | Computer-based engineering simulation. | Used before machining to evaluate stress, weight, torque load, and clearance. |
Selected high-volume reference specifications may be supported by external lab reporting or third-party documentation. Bespoke BYD Sealion 7 specifications are engineered from the same design families and reviewed through LFI's internal design, load, brake-clearance, and fitment-validation process. Customers can also review LFI's Testing & Compliance page for the broader testing-language context.
Range matters on an EV, but so does presence. This build keeps the wheel at 20 inches for visual authority while pulling the width back to 7.5 inches and pushing the offset to ET20 — less frontal profile, less drag, more range. At 9.0 kg per wheel, the CSF1 V3 drops meaningful rotational mass compared with the factory cast wheel. For the owner who wants the 20-inch look without the efficiency penalty.
Not every Sealion 7 owner wants the lightest possible wheel. Some want a wheel that looks substantial and carries reserve. This MF20 build uses a 20x8.5 ET30 square spec — wider than factory, square so tires stay rotatable, finished in matte CQ01. At 11.0 kg it is heavier than the CSF1 V3, but that weight goes into a deeper multi-spoke face profile and a higher load ceiling.
If you are keeping the car on 19s — and many Sealion 7 owners should — this is the reference build. 19x8.0 ET26 square, MF912 monoblock, matte CQ01 with silver engraving. The 235/50R19 tire keeps enough sidewall for Singapore roads and Malaysian highways. The ET26 offset pushes the wheel outward just enough to fill the arch without going too far.
The 19x8.5 balanced option. Wider than the 19x8 MF912 by half an inch — lets you run a 245 or 255 tire shoulder. At 9.5 kg the CSF6 stays in lightweight forged territory. ET30 keeps the wheel tucked without needing camber tricks.
The staggered reference. 19x8.0 ET26 front, 19x9.0 ET30 rear — the wider rear wheel unlocks Supreme Concave depth that a square setup cannot match. Tires follow the factory staggered logic: 235/50R19 front, 255/45R19 rear. This is the visual build.
A staggered 20-inch CSF1 V3 specification backed by a real customer fitment record. Width, offset, tire pairing, and load target are confirmed per car before production.
This fitment is kept as a real specification reference and can receive customer photos later.
These wheel models are selected around the vehicle type instead of a generic forged-wheel fallback. Final width, offset, PCD, center bore, brake clearance, finish, load target, and tire pairing still need confirmation before production.
Purpose-built for heavy EV platforms. Aerodynamic spoke profiling reduces drag while maintaining the load headroom an electric crossover needs.
Clean multi-spoke EV design. Already proven on BYD M6 customer builds — same 5x120 architecture, same load requirements.
The lightweight option. Motorsport-derived spoke geometry with enough barrel clearance for most brake packages. From USD 420 per wheel.
LFI supports BYD Sealion 7 customers across Singapore, Malaysia, China, Australia, Japan, the United States, the United Kingdom, EU markets, and other enthusiast regions. The recommendation starts from the actual car, not a generic country assumption.
LFI helps owners choose between OEM+, lightweight square, brake-clearance, show-style, and track-focused forged setups.
City roads, highways, potholes, wet-weather tires, ride comfort, and tire availability can all change the best wheel and tire recommendation.
LFI offers Duty Paid Shipping (DDP) to major markets, so eligible customers pay the confirmed landed price with no extra import tariffs or taxes due on delivery.
Singapore customers can visit LFI at 76 Playfair Road, #01-03, Singapore 367996 to view forged wheel samples, finishes, concavity profiles, and selected in-stock wheels.
Visit hours: Monday, Wednesday, Thursday, Friday 10:00 AM-6:00 PM; Tuesday and Saturday by appointment; Sunday closed.
Malaysia customers can order directly with LFI and request pre-production consultation for road use, track use, tire availability, and brake clearance.
| Reference | What it supports | Link |
|---|---|---|
| BYD Sealion 7 Spec Sheet | Manufacturer Singapore specification reference for Sealion 7 kerb weight, gross vehicle mass, drivetrain, tire sizing, and chassis data. | BYD Sealion 7 spec sheet |
| JWL / VIA Wheel Standards | Japanese light-alloy wheel standard and third-party verification context for JWL / JWL-T marking and VIA registration. | Japan Light Alloy Automotive Wheel Testing Council |
| TUV SUD Wheel Testing | Independent laboratory testing context for wheels, materials, components, fatigue testing, impact testing, and international wheel standards. | TUV SUD Wheel Testing |
| Standards Testing Laboratories | Automotive wheel test-lab context for fatigue, impact, load / deflection, and compliance-related validation. | STL Testing Services |
| SAE J2530 | Aftermarket passenger-car and light-truck wheel performance requirements and test-method context. | SAE J2530 |
Yes. Every case study, every photo, every specification in this guide comes from a real LFI customer build. No renders. No simulated fitments.
Every Sealion 7 LFI has built to date uses 5x120. LFI still confirms against your exact car before machining.
64.1 mm. This is the hub-centric machining standard for the Sealion 7 platform. Confirmed per build.
The most-built direction is 20x8 ET25 front / 20x9 ET32 rear on the CSF1 V3 — a staggered 20-inch setup backed by real customer records.
Yes, when the offset, brake clearance, and body clearance are engineered into the forged wheel specification.
Some real fitments have enough specification detail to help owners, but installed-car photos have not been supplied yet.
Model year, brake package, current and target tire sizes, ride height (stock or lowered), center-cap preference, finish direction, and whether your priority is range, stance, lightweight response, or all three. LFI works through the rest.
Yes. Singapore customers can visit the showroom at 76 Playfair Road. Malaysia customers order directly with pre-production consultation. International orders ship DDP to major markets.
Yes. The photos are fitment references. LFI can quote gloss, satin, brushed, polished, bronze, black, silver, and custom finishes depending on the wheel design.
No. The photographed setup is a proven reference point, but LFI can adjust width, offset, concavity, finish, and tire pairing around your car and goals.
Brake clearance depends on the caliper template, barrel profile, spoke shape, backpad, and final offset. LFI checks these before machining.
Yes. A comfort-biased setup can use a more conservative width, sensible offset, and tire sizing with enough sidewall for road use.
Yes, but fender clearance, steering clearance, tire shoulder, ride height, and alignment need to be checked together.
Often yes, if the cap diameter, clip style, pocket depth, and face profile are planned before production.
Yes. Square setups are popular when owners want easy tire rotation, predictable handling, and a clean road-use package.
Yes. Staggered setups can work when the platform, tire diameter, and drivetrain requirements support it.
Two tires with the same printed size can sit differently. Shoulder shape affects fender clearance, steering clearance, and the final stance.
Offset only tells part of the story. Width, tire size, brake clearance, hub geometry, concavity, and ride height all affect whether the setup works.
Yes. LFI supports international forged-wheel orders and can prepare fitment consultation remotely before production.
Share your model year, brake package, tire target, ride height, alignment, center-cap plan, and finish target so LFI can confirm the forged wheel specification.