Onyx Forged

Catalogue of custom forged wheels

Explore our catalogue of custom forged wheels in 6061-T6 aluminium: monoblock and two-piece in the catalogue, three-piece on quotation, designed to JWL/VIA standards, 5-axis CNC machined. Each model comes in several diameters, and every price shown is for a set of four wheels.

How to read this catalogue

The online catalogue brings together the two constructions customers ask for most, monoblock and two-piece. Each model comes in several diameters, and it is the diameter that sets the price: the product page gives the full price list, diameter by diameter. The three-piece is kept for projects that need it and is made on quotation.

The designs shown are only a starting point. The face design, the depth of the concave profile, the width, the offset and the colour are decided project by project; the configurator is there precisely to start from a reference image rather than from a catalogue model.

The models listed on this page (23)

All prices below are for a set of four wheels. Free delivery to mainland France, the European Union, Switzerland and the United Kingdom. Each model links to its product page (in French for now), which gives the full price list, diameter by diameter, from 18″ to 24″.

Monoblock: a single forged piece (13)

Two-piece: forged centre and separate barrel (10)

Three-piece (centre, inner and outer barrel): on quotation. See the three-piece construction.

For Great Britain, our checkout charges in pounds sterling. It converts the euro price at its exchange rate on the day, currency conversion charge included, so the amount in pounds is about 2% more than a straight conversion at the market rate; the amount shown at checkout is the one charged for your order. The amounts in pounds on this page are those of 4 October 2026. Delivery is included in the price, so UK import VAT (20%) applies to the whole amount in pounds. Monoblock sets start at £2,780 at checkout (€3,200 on this website), or £3,336 with UK import VAT (20%); two-piece sets start at £3,735 (€4,300), or £4,482 with UK import VAT. The carrier collects the VAT before delivery, together with its clearance fee (for example, DHL Express charges £11 or 2.5% of the duty and VAT it pays, whichever is higher) and any import duty. Any import duty depends on the UK tariff in force when your wheels arrive: the amount you pay is the one on the carrier's notice, and UK import VAT then applies to it too. The details are on our Delivery to Great Britain page.

The catalogue also includes three editions made to fit one specific car, each with its own price. They are listed in the full catalogue, with photos and finishes (page in French).

Monoblock, two-piece or three-piece: what is the difference?

All three constructions start from the same metal and the same process: a block of forged 6061-T6 aluminium, then 5-axis CNC machined, never cast in a mould. What sets them apart is the number of parts in the finished wheel, and therefore the freedom it leaves on width, offset and finish.

Monoblock (one piece)

The whole wheel is cut from a single block of forged 6061-T6 aluminium, then 5-axis CNC machined. No separate barrel, no assembly bolts: the wheel is one piece. Of the three constructions, it weighs least and does the most to reduce unsprung mass. The concave profile is machined straight into the face, from a flat profile to a deep concave.

For drivers who put performance and handling first: less mass at the end of each suspension arm means a wheel that follows the road better and a car that changes direction more readily.

See the monoblock range

Two-piece

A forged centre is assembled to a barrel made to measure. Width and offset no longer depend on the design of the face: you choose them. The lip can be deep, the bolts remain visible, and two-tone finishes become possible, since the centre and the barrel can be finished differently.

For drivers after exact fitment (the position of the wheel in the arch, to the millimetre) and a visual presence that a monoblock cannot match.

See the two-piece range

Three-piece

The forged centre sits between an outer barrel and an inner barrel, and the three parts are assembled by hand. It is the construction that goes furthest: extreme widths, an offset (ET) set to the millimetre, a stepped lip, technical bolts.

For exceptional projects, when the width or the offset you want cannot be reached with any other construction. It is made on quotation.

See the three-piece construction

Which one to choose?

Monoblock if lightness and handling come first. Two-piece if exact fitment and a deep lip matter most. Monoblock and two-piece are the constructions customers ask for most; three-piece is kept for projects that need it, when the width or the offset you want cannot be reached any other way, and it is made on quotation. If in doubt, the Onyx Forged design office decides from your car's measurements: write to contact@onyxforgedwheels.com, or see how to customise your wheels.

Manufacturing is bespoke: the dimensions are set for one specific car, and your wheels are 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. On a quotation calculated online, you can pay in 3 interest-free instalments. Prices on the website are for a set of four wheels, never for a single wheel. Free delivery to mainland France, the European Union, Switzerland, the United Kingdom, Norway and Iceland, and to the French overseas departments and territories on quotation, which sets the delivery time (Terms and Conditions, article 5.2).

Why forged, not cast

A cast wheel is made by pouring liquid aluminium into a mould. As it cools, the metal leaves tiny pores, invisible to the eye.

A forged wheel never goes through a liquid state: a solid block of aluminium is compressed under a force of several thousand tonnes. Its internal grain lines up. The resulting material has no porosity and behaves differently under impact: where a cast wheel tends to crack all at once, a forged wheel deforms before it breaks.

That is the material that is then 5-axis CNC machined: forged 6061-T6 aluminium, an alloy also used in aircraft construction. The full explanation takes two lessons of the Onyx Academy: cast or forged (page in French) and why a forged wheel almost never breaks (page in French).