Custom forged wheels for Mercedes
Custom forged wheels for Mercedes-AMG: G 63 (G-Class), AMG GT, C 63 and A 45, machined to the PCD and centre bore of your car. The measurements of the AMG A-Class (A 35 and A 45, W177), the AMG CLA (CLA 35 and CLA 45, C118), the C 43 (W206) and the GLC 63 (X253), all 5x112, are published with their sources; those of the other Mercedes-AMG models are still being recorded. The Onyx Forged design office submits the measurements to you before machining. 6061-T6 aluminium, designed to JWL/VIA standards.
Why choose Onyx Forged for Mercedes
- Forged 6061-T6 aluminium
- 5-axis CNC machining
- Designed to JWL/VIA standards
- Fitment worked out for your Mercedes
Mercedes wheels: what we publish, and what is still being recorded
The PCD (bolt pattern), the centre bore, the bolt thread and the original fitments change from one Mercedes model to another, and from one generation to the next within the same model. We only show one 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 of the Mercedes AMG A-Class (A 35 and A 45, W177), the AMG CLA (CLA 35 and CLA 45, C118), the C 43 (W206, saloon) and the GLC 63 (X253, SUV and coupé) are published on their pages, W177, C118, W206 and X253, with the source of each value. For the other Mercedes-AMG models on this page (the G-Class G 63, the AMG GT and the C 63), this recording is under way: no measurement is published until it is done. Their original measurements will appear on the page for each generation as soon as they are recorded, with the source of each value.
How to choose a wheel for your Mercedes in the meantime
The size of your tyres is the first reliable piece of information: it is written on their sidewall (reading a tyre (page in French)). 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 in the wheel arch: these tools compare, they do not recommend any offset. The brakes, for their part, sometimes set a minimum diameter: a guide explains what the diameter changes (page in French).
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. Price and lead time each have their own page: custom forged wheel prices and lead time.
Frequently asked questions about Mercedes wheels
Which wheel size for my Mercedes?
The one for your model, your generation and your version, which varies even within a model. The size is shown on the sidewall of your tyres. We publish the fitments of the Mercedes-AMG A 35 and A 45 (W177) on their page, those of the CLA 35 and CLA 45 (C118) on theirs, those of the C 43 4MATIC (W206) on its own, and those of the GLC 63 and GLC 63 S (X253) on theirs; for the other Mercedes-AMG models on this page, the recording is under way.
What is the PCD of a Mercedes?
It depends on the model and the generation. We only show it if a source gives it with the reliability we require: it is 5x112 on the A-Class W177 (A 35 and A 45), on the CLA C118 (CLA 35 and CLA 45), on the C 43 W206 and on the GLC 63 (X253), with its sources on their pages, W177, C118, W206 and X253. For the other Mercedes-AMG models on this page, the recording is under way: it will appear on the page for each generation, with its sources.
Do forged wheels for a Mercedes 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.
How much do forged wheels for a Mercedes cost?
The price of a custom forged wheel depends on its diameter and its construction: the price grid for monoblock and 2-piece wheels is published diameter by diameter, 3-piece wheels are priced on quotation, and the finish does not change the price. The details are on the custom forged wheel prices page, and the lead time on the lead time page.
Monoblock, 2-piece or 3-piece: what is the difference?
A monoblock wheel is machined from a single forged block; a 2-piece wheel assembles a forged centre and a barrel; a 3-piece wheel holds the centre between an outer barrel and an inner barrel. Each construction has its own page, monoblock, 2-piece and 3-piece, and the guide monoblock, 2-piece or 3-piece (page in French) compares them.
And if my Mercedes 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 Mercedes 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
- Offset (ET): definition, calculation and effects
- Forged wheels and TPMS sensors: keep or replace? (page in French)
- A second set of wheels for winter (page in French)
Configure your custom Mercedes wheels
Enter your Mercedes 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 Mercedes wheels by model
PCD, centre bore, thread, diameters and original offsets: the Mercedes 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 |
|---|---|---|---|---|---|
| Mercedes A 45 AMG W177 (2018-present) | 5x112 · 66.6 mm · M14 x 1.5 | 18, 19 inches | ET 40 to ET 46 | €3,200 (18″) Great Britain: £3,336 with UK import VAT | 7 sources, including 4 primary |
| Mercedes CLA 45 AMG C118 (2019-present) | 5x112 · 66.6 mm · M14 x 1.5 | 18, 19 inches | ET 46 to ET 52 | €3,200 (18″) Great Britain: £3,336 with UK import VAT | 18 sources, including 12 primary |
| Mercedes GLC 63 AMG X253 and C253 (2017-2023) | 5x112 · 66.6 mm · M14 x 1.5 | 19, 20, 21 inches | ET 18 to ET 30 | €3,200 (19″) Great Britain: £3,336 with UK import VAT | 21 sources, including 10 primary |
| Mercedes C 43 AMG W206 (2022-present) | 5x112 · 66.6 mm · M14 x 1.5 | 18, 19, 20 inches | ET 43.1 to ET 61.1 | €3,200 (18″) Great Britain: £3,336 with UK import VAT | 6 sources, including 1 primary |
Generation by generation
Mercedes A 45 AMG W177 (2018-present): 5 original fitments recorded, 18 to 19 inches. Versions: Mercedes-AMG A 35 4MATIC; Mercedes-AMG A 45 and A 45 S 4MATIC+. Fitments: 18-inch, 8J ET 40 (tyres 235/40 R18; winter fitment) or 8.5J ET 46 (tyres 245/40 R18; winter fitment); 19-inch, 8J ET 40 (tyres 235/35 R19) or 8.5J ET 46 (tyres 245/35 R19 or 245/35 ZR19).
Mercedes CLA 45 AMG C118 (2019-present): 4 original fitments recorded, 18 to 19 inches. Versions: Mercedes-AMG CLA 45 and CLA 45 S 4MATIC+, Coupé and Shooting Brake, from 285 to 310 kW; Mercedes-AMG CLA 35 4MATIC, Coupé and Shooting Brake, 225 kW. Fitments: 18-inch, 8.5J ET 46 (tyres 245/40 R18) or 8J ET 49 (tyres 235/40 R18); 19-inch, 9J ET 52 (tyres 255/35 R19) or 8.5J ET 46 (tyres 245/35 R19; winter fitment).
Mercedes GLC 63 AMG X253 and C253 (2017-2023): 6 original fitments recorded, 19 to 21 inches. Versions: GLC 63 4MATIC+ (350 kW), SUV and coupé; GLC 63 S 4MATIC+ (375 kW), SUV and coupé. Fitments: 19-inch, 8J ET 19 (tyres 235/55 R19) at the front, 9J ET 18 (tyres 255/50 R19) at the rear or 8J ET 19 (tyres 235/55 R19; winter fitment); 20-inch, 9.5J ET 30 (tyres 265/45 R20) at the front, 10J ET 28 (tyres 295/40 R20) at the rear; 21-inch, 9.5J ET 30 (tyres 265/40 R21) at the front, 10J ET 28 (tyres 295/35 R21) at the rear.
Mercedes C 43 AMG W206 (2022-present): 3 original fitments recorded, 18 to 20 inches. Version: C 43 4MATIC saloon (300 kW, all-wheel drive). Fitments: 18-inch, 8J ET 43.1 (tyres 245/45 R18); 19-inch, 8J ET 43.1 (tyres 245/40 R19) at the front, 9.5J ET 61 (tyres 265/35 R19) at the rear; 20-inch, 8J ET 43.1 (tyres 245/35 R20) at the front, 9.5J ET 61.1 (tyres 265/30 R20) at the rear.
The same wheels from one car to the next?
Same fixing measurements on all 4 cars: PCD 5x112, centre bore 66.6 mm and thread M14 x 1.5.
The original diameters change: 18, 19 inches for the Mercedes A 45 AMG W177 and Mercedes CLA 45 AMG C118; 19, 20, 21 inches for the Mercedes GLC 63 AMG X253 and C253; 18, 19, 20 inches for the Mercedes C 43 AMG W206.
The range of original offsets changes: ET 40 to ET 46 for the Mercedes A 45 AMG W177; ET 46 to ET 52 for the Mercedes CLA 45 AMG C118; ET 18 to ET 30 for the Mercedes GLC 63 AMG X253 and C253; ET 43.1 to ET 61.1 for the Mercedes C 43 AMG W206.
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 Mercedes: free 3D render, on request.