Custom forged wheels for BYD Seal first generation (2022-present)
Technical specifications
- Production period
- 2022-present
Original fitment measurements: BYD Seal first generation
The measurements of the car as delivered new, to identify yours and compare. Each value refers, by a number, to the sources that give it. They are not a recommendation: Onyx does not advise any specific offset.
Hub
| Measurement | Original value |
|---|---|
| PCD (bolt pattern) | 5x120 [1, 2] |
| Centre bore | 64.1 mm [1, 2] |
| Thread | Not published |
| Fixing | Wheel nuts [2, 3] |
| Bolt or nut seat | Not published |
| Tightening torque | Not published |
“Not published”: no source gives it with the certainty we require at this stage (see the rule below).
Original fitments by version
| Version and fitment | Front | Rear | ||||||
|---|---|---|---|---|---|---|---|---|
| Diameter | Width | Original offset (manufacturer) | Tyre | Diameter | Width | Original offset (manufacturer) | Tyre | |
| Seal, rear-wheel drive, 230 kW, 19 inches, original equipment | 19″ [4] | 8J [4] | ET 45 [4] | 235/45 R19 [3, 4] | 19″ [4] | 8J [4] | ET 45 [4] | 235/45 R19 [3, 4] |
| Seal, all-wheel drive, 390 kW, 19 inches, original equipment | 19″ [5] | 8J [5] | ET 45 [5] | 235/45 R19 [3, 5] | 19″ [5] | 8J [5] | ET 45 [5] | 235/45 R19 [3, 5] |
| Seal, rear-wheel drive, 150 kW or 170 kW, 18 inches, original equipment | 18″ [6, 7] | 7J [6, 7] | ET 45 [6, 7] | 225/50 R18 [3, 6, 7] | 18″ [6, 7] | 7J [6, 7] | ET 45 [6, 7] | 225/50 R18 [3, 6, 7] |
| Seal, rear-wheel drive, 150 kW or 170 kW, 19 inches, original equipment | 19″ [6, 7] | 8J [6, 7] | ET 45 [6, 7] | 235/45 R19 [3, 6, 7] | 19″ [6, 7] | 8J [6, 7] | ET 45 [6, 7] | 235/45 R19 [3, 6, 7] |
The offsets are the original ones, given by the manufacturer or by the sources cited; they help you identify your car's fitment.
What Onyx can make for the BYD Seal first generation
Custom forged wheels in forged 6061-T6 aluminium, designed to JWL/VIA standards, in monoblock or two-piece construction; three-piece wheels are made on quotation.
The diameters below start at the smallest original diameter recorded on this car (18″) and go up to 24″.
| Diameter | Monoblock, set of four wheels | Two-piece, set of four wheels |
|---|---|---|
| 18″ | €3,200 Great Britain: £3,336 with UK import VAT | €4,300 Great Britain: £4,482 with UK import VAT |
| 19″ | €3,200 Great Britain: £3,336 with UK import VAT | €4,300 Great Britain: £4,482 with UK import VAT |
| 20″ | €3,300 Great Britain: £3,440.40 with UK import VAT | €4,400 Great Britain: £4,586.40 with UK import VAT |
| 21″ | €3,550 Great Britain: £3,700.80 with UK import VAT | €4,750 Great Britain: £4,951.20 with UK import VAT |
| 22″ | €3,750 Great Britain: £3,908.40 with UK import VAT | €5,200 Great Britain: £5,420.40 with UK import VAT |
| 23″ | €3,950 Great Britain: £4,117.20 with UK import VAT | €5,750 Great Britain: £5,992.80 with UK import VAT |
| 24″ | €4,100 Great Britain: £4,273.20 with UK import VAT | €6,300 Great Britain: £6,566.40 with UK import VAT |
Amounts in pounds: our checkout on 4 October 2026, before the carrier's clearance fee and any import duty. The amount shown at checkout is the one charged for your order.
Wheels delivered in 4 to 8 working weeks, shipping included, from full payment for an order on the website, or from the deposit for an order on quotation, and at the earliest from your approval of the measurements, the colour or the 3D render you asked for, under article 5.1 of the Terms and Conditions.
The offset and width of your wheels do not come from a table: the Onyx Forged design office calculates them for your car and your brakes, and submits them to you before machining.
Frequently asked questions: wheels for the BYD Seal first generation
What are the original offsets for the wheels of a BYD Seal?
The Seal's Swiss vehicle type record gives all its wheels an offset of 45, on both axles: 8J x 19 on all versions, and 7J x 18 as a second fitment on the 150 and 170 kW rear-wheel-drive Seal. [4, 5, 6, 7]
Which tyres, and which load index, does a BYD Seal take?
225/50 R18 of load index 95, i.e. 690 kg per tyre, on the 18-inch wheels, and 235/45 R19 of load index 99, i.e. 775 kg, on the 19-inch ones: these are the combinations in the Swiss vehicle type record, and BYD's owner's manual gives the same sizes. [3, 6, 7, 8]
What is the load per wheel on an all-wheel-drive BYD Seal?
The Swiss vehicle type record gives it a permissible load of 1,411 kg on the rear axle, i.e. 705.5 kg per rear wheel. The 235/45 R19 tyre of load index 99 in the same record carries 775 kg. A replacement wheel is sized on this load, not on the kerb weight. [5, 8]
What PCD, centre bore and fixings does a BYD Seal use?
The PCD is 5x120 and the centre bore 64.1 mm: wheelfitment.eu and hubcentric-rings.com give these measurements. The wheels are held by nuts, according to BYD's owner's manual. The thread and the tightening torque are not published: only one database gives the thread, and no BYD document we have read gives the torque. [1, 2, 3]
Sources for the measurements and answers
- hubcentric-rings.com, BYD Seal (“Seal (2023–)” row) (secondary source, consulted on 20 October 2026)
- wheelfitment.eu, BYD Seal (2022 - ) (secondary source, consulted on 20 October 2026)
- BYD, BYD SEAL owner's manual (left-hand drive, English, edition of 9 December 2025) (primary source, consulted on 20 October 2026)
- Swiss Federal Roads Office (ASTRA), vehicle type record no. ABJ241 (BYD Seal, type EKE, rear-wheel drive, 230 kW, June 2026) (primary source, consulted on 20 October 2026)
- Swiss Federal Roads Office (ASTRA), vehicle type record no. ABJ239 (BYD Seal, type EKE, all-wheel drive, 390 kW, June 2026) (primary source, consulted on 20 October 2026)
- Swiss Federal Roads Office (ASTRA), vehicle type record no. ABJ243 (BYD Seal, type EKE, rear-wheel drive, 150 kW, June 2026) (primary source, consulted on 20 October 2026)
- Swiss Federal Roads Office (ASTRA), vehicle type record no. ABJ245 (BYD Seal, type EKE, rear-wheel drive, 170 kW, June 2026) (primary source, consulted on 20 October 2026)
- Fiches-auto.fr, tyre load index table (index → kg) (reference table, for a conversion, consulted on 3 October 2026)
Publication rule: a measurement is shown only if a primary source gives it (a manufacturer's document, an official vehicle type record, an original parts catalogue, the maker of the original wheel) without another primary source contradicting it, or if two independent specialist sources agree without a primary source contradicting them. The press and forums do not count. Measurements checked on 20 October 2026 by the Onyx Forged design office.
Designs for this generation
Three models from our catalogue, forged to measure for your BYD Seal first generation. The price is for a set of four wheels: it depends on the construction and the diameter.
OX-Y7 VenomMonoblock · From €3,200 for a set of four wheelsGreat Britain: from £3,336 with UK import VAT
OX-C9 RazorMonoblock · From €3,200 for a set of four wheelsGreat Britain: from £3,336 with UK import VAT
OX-D5 QuantumTwo-piece · From €4,300 for a set of four wheelsGreat Britain: from £4,482 with UK import VAT
Amounts in pounds: our checkout on 4 October 2026, before the carrier's clearance fee and any import duty. The amount shown at checkout is the one charged for your order.
Custom forged wheels for the BYD Seal first generation
- Forged 6061-T6 aluminium
- 5-axis CNC machining
- Designed to JWL/VIA standards
- Fitment worked out for your BYD Seal first generation
BYD Seal: 5x120 on a 64.1 mm hub
The BYD Seal uses 5x120, on a 64.1 mm hub: two independent specialist databases give the PCD and the centre bore, each cited in the table. Its wheels are held by nuts, as BYD's owner's manual states. The thread, the seat and the tightening torque of the nuts are not published here: no sufficient source gives them.
The fitments in the vehicle type record: an offset of 45 throughout
The Swiss vehicle type record, published by the Federal Roads Office, gives one fitment per variant, the same on both axles. All versions have 8J x 19 wheels with an offset of 45 and 235/45 R19 tyres of load index 99; the 150 and 170 kW rear-wheel-drive versions also have a 7J x 18 fitment, with the same offset of 45 and 225/50 R18 tyres of load index 95. BYD's owner's manual gives the same tyre sizes.
An electric saloon: load first
The all-wheel-drive Seal has a permissible load of 1,411 kg on the rear axle, i.e. 705.5 kg per rear wheel; the 235/45 R19 tyre of load index 99 carries 775 kg. A forged wheel is sized on this load, not on the kerb weight, and a replacement tyre must have at least the load index of the original fitment. The guide Heavy SUVs: what load must the wheel carry? (page in French) explains the calculation.
Noise and range: what the wheel changes
With no combustion engine to mask it, rolling noise is more noticeable, and a larger wheel with a wider tyre generally increases rolling resistance, and therefore consumption. Some replacement tyres carry the HL marking, which gives them more load capacity for the same size. The guide electric car tyres (page in French) explains wear, the HL marking, noise and range; the fitment is still determined by your car, whose measurements we record.
Configure your forged wheels for the BYD Seal
The Onyx Forged design office works out the measurements of your car from its exact version, stated on the registration document, and shows them to you before machining. Each set is cut from forged 6061-T6 aluminium, machined on a 5-axis CNC centre, as monoblock, two-piece or three-piece wheels; our wheels are designed to JWL/VIA standards. Prices by diameter and the lead time are given on this page, under “What Onyx can make”. Start your configuration or write to contact@onyxforgedwheels.com.
Configure custom wheels for your BYD Seal first generation: free 3D render, on request.
Useful guides
See all BYD models.