Custom forged wheels for Ford
Custom forged wheels for Ford, based on the original measurements of each generation, sources cited. 6061-T6 aluminium, designed to JWL/VIA standards.
Why choose Onyx Forged for Ford
- Forged 6061-T6 aluminium
- 5-axis CNC machining
- Designed to JWL/VIA standards
- Fitment worked out for your Ford
Ford wheels: the measurements of your generation, with their sources
The PCD (bolt pattern), the centre bore, the wheel fixing and the fitments change from one Ford model to another, and from one version to another within the same model. We only show a measurement if a source gives it: a manufacturer document, a vehicle type record, an original parts catalogue, or two independent specialist sources that agree. The measurements are published generation by generation, on the page for each car, where each measurement cites its source. The pages are those of the Mustang S550, from 2015 to 2023: 2.3 EcoBoost, GT, Bullitt and Mach 1, of the Mustang S650, since 2024: GT and Dark Horse, of the Focus RS Mk3 and of the Focus ST Mk4.
A sports car: brakes, load and offset
On a sports car, three measurements govern the wheel. The diameter of the brakes sets the smallest possible diameter (wheels and brakes (page in French)). The load each wheel carries determines what the wheel must withstand, and the tyre must keep at least the load index of the original fitment: the page for each generation for which a vehicle type record has been read (Mustang S550, Focus RS and ST) gives the permissible load per axle and the load index of the original tyres, with their source; that of the Mustang S650, with no record read, does not give them. Finally, the offset positions the wheel in the wheel arch. To compare two fitments, the tyre size equivalence tool checks that the rolling circumference stays close, and the wheel offset calculator compares the position of two wheels: these tools compare, they do not recommend any offset.
Why we record your car's measurements
An Onyx wheel is machined to the PCD and centre bore of the car it is made for: it centres on the hub with no ring or spacer. Enter your model, its model year and its version in the configurator: the Onyx Forged design office records the measurements, calculates the width and offset for your car and your brakes, and submits them to you before machining.
An Onyx forged wheel is 5-axis CNC machined from a block of forged 6061-T6 aluminium, instead of being cast in a mould, and designed to JWL/VIA standards. The forged, cast or flow formed page explains what this changes for weight and strength, and the unsprung mass (page in French) guide sets out what a lighter wheel changes. Price and lead time each have their own page: custom forged wheel prices and lead time.
Frequently asked questions about Ford wheels
Which wheel size for my Ford?
The one for your model, your generation and your version. The size is shown on the sidewall of your tyres (reading a tyre (page in French)); the original fitments, with their width, their offset and the tyre that goes with them, are on the page for your generation when it exists on the site.
Do forged wheels for a Ford have an approval of their own, and do they pass the roadworthiness test?
No: made one set at a time, Onyx wheels have no individual approval of their own, and we say so before the order. They are designed to JWL/VIA standards. The French roadworthiness test (contrôle technique) examines the wheel without removing it (cracks, deformation, a wheel that sticks out beyond the bodywork) and checks that the tyre size is provided for by the manufacturer or accepted as equivalent; it neither validates nor rejects a modification, which is a matter for vehicle approval (réception) and the registration document. The details, country by country, are on the roadworthiness test and registration page.
And if my Ford is not on the list?
An Onyx wheel is designed around the measurements of the car it goes on. Enter your model and its model year in the configurator: we record your car's measurements and submit them to you before machining.
Tools and guides for choosing Ford wheels
- Tyre size equivalence: compare two tyre sizes.
- Wheel offset calculator: compare the position of two wheels.
- Wheel and tyre sizes: how to read every marking
- Wheel PCD and centre bore: reading and measuring them
- Wheel nuts: types, tightening torque, locking wheel nuts (page in French)
- Track day: preparing wheels, tyres and brakes (page in French)
- A second set of wheels for winter (page in French)
Configure your custom Ford wheels
Enter your Ford and its model year: we record its measurements and submit them to you before machining, with a 3D render on request. Configure your custom wheels.
Our Ford wheels by model
PCD, centre bore, thread, diameters and original offsets: the Ford cars we cover
One row per generation. Each value is taken from the car's page, which cites the source of each measurement, its fitments version by version and their original offsets (manufacturer). When a PCD has its own page, it leads there: that page lists every car that shares it.
| Car | PCD, centre bore, thread | Original diameters | Original offsets (manufacturer) | Onyx entry price, set of four wheels | Sources for these measurements |
|---|---|---|---|---|---|
| Ford Mustang S550 (2015-2023) | 5x114.3 · 70.5 mm · M14 x 1.5 | 19 inches | ET 40 to ET 45 | €3,200 (19″) Great Britain: £3,336 with UK import VAT | 25 sources, including 19 primary |
| Ford Mustang S650 (2024-present) | 5x114.3 · 70.5 mm · M14 x 1.5 | 19 inches | ET 40 to ET 52.5 | €3,200 (19″) Great Britain: £3,336 with UK import VAT | 13 sources, including 10 primary |
| Ford Focus RS (Mk3) (2016-2018) | 5x108 · 63.4 mm · M12 x 1.5 | 18, 19 inches | ET 50 | €3,200 (18″) Great Britain: £3,336 with UK import VAT | 5 sources, including 3 primary |
| Ford Focus ST (Mk4) (2019-present) | 5x108 · 63.4 mm · M12 x 1.5 | 17, 18, 19 inches | ET 50 to ET 55 | €3,200 (18″) Great Britain: £3,336 with UK import VAT | 11 sources, including 7 primary |
Generation by generation
Ford Mustang S550 (2015-2023): 6 original fitments recorded, all 19-inch. Versions: Mustang 2.3 EcoBoost, Fastback and convertible, from 213 to 233 kW (290 to 317 PS); Mustang GT 5.0 V8 and Bullitt, Fastback and convertible, from 310 to 338 kW (421 to 460 PS); Mustang Mach 1, 338 kW (460 PS). Fitments: 19-inch, 9J ET 45 (tyres 255/40 R19), 9J ET 45 (tyres 255/40 R19) at the front, 9.5J (tyres 275/40 R19) at the rear or 9.5J ET 40 (tyres 255/40 R19) at the front, 10J (tyres 275/40 R19) at the rear.
Ford Mustang S650 (2024-present): 2 original fitments recorded, all 19-inch. Versions: Mustang GT 5.0 V8, Fastback and convertible (446 PS); Mustang Dark Horse 5.0 V8, Fastback (453 PS). Fitments: 19-inch, 9J ET 45 (tyres 255/40 R19) at the front, 9.5J ET 52.5 (tyres 275/40 R19) at the rear or 9.5J ET 40 at the front, 10J ET 52.5 (tyres 275/40 R19) at the rear. Compared with the Mustang S550 generation: same diameters (19 inches); at the front, same widths (9 to 9.5J) and same offsets (ET 40 to ET 45); at the rear, widths 9.5 to 10J instead of 9 to 10J and offsets ET 52.5 instead of ET 45.
Ford Focus RS (Mk3) (2016-2018): 2 original fitments recorded, 18 to 19 inches. Version: Focus RS 2.3 EcoBoost, 257 kW, all-wheel drive. Fitments: 18-inch, 7.5J ET 50 (tyres 225/40 R18); 19-inch, 8J ET 50 (tyres 235/35 R19).
Ford Focus ST (Mk4) (2019-present): 6 original fitments recorded, 17 to 19 inches. Versions: Focus ST 2.3 EcoBoost, 206 kW, 5-door and estate; Focus ST 2.0 EcoBlue, 140 kW, 5-door and estate. Fitments: 17-inch, 7J ET 50 (tyres 215/50 R17); 18-inch, 8J ET 55 (tyres 235/40 R18); 19-inch, 8J ET 55 (tyres 235/35 R19). Compared with the Focus RS (Mk3) generation: diameters 17, 18 and 19 inches instead of 18 and 19 inches; widths 7 to 8J instead of 7.5 to 8J; offsets ET 50 to ET 55 instead of ET 50.
The same wheels from one car to the next?
The PCD differs: 5x114.3 for the Ford Mustang S550 and Ford Mustang S650; 5x108 for the Ford Focus RS (Mk3) and Ford Focus ST (Mk4).
The centre bore differs: 70.5 mm for the Ford Mustang S550 and Ford Mustang S650; 63.4 mm for the Ford Focus RS (Mk3) and Ford Focus ST (Mk4).
The thread differs: M14 x 1.5 for the Ford Mustang S550 and Ford Mustang S650; M12 x 1.5 for the Ford Focus RS (Mk3) and Ford Focus ST (Mk4).
The original diameters change: 19 inches for the Ford Mustang S550 and Ford Mustang S650; 18, 19 inches for the Ford Focus RS (Mk3); 17, 18, 19 inches for the Ford Focus ST (Mk4).
The range of original offsets changes: ET 40 to ET 45 for the Ford Mustang S550; ET 40 to ET 52.5 for the Ford Mustang S650; ET 50 for the Ford Focus RS (Mk3); ET 50 to ET 55 for the Ford Focus ST (Mk4).
Each generation's page gives the fitment of each version, with its sources.
“—”: measurement not published for lack of a sufficient source. The diameters and offsets are those of the original fitments, all versions together: the car's page gives the fitment of each version. These measurements help you recognise your car; they are not a recommendation, and Onyx does not advise any specific offset.
Onyx entry price: the set of four monoblock forged wheels in the smallest diameter of our price list that covers the smallest original diameter recorded; the other diameters and the two-piece construction are on each generation's page. 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.
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 22 October 2026.
Configure custom wheels for your Ford: free 3D render, on request.