Onyx Forged
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OX-U5 Tulum — monoblock forged wheels for Lamborghini, BMW, Audi…

In short: OX-U5 Tulum: monoblock forged wheels, 18″ to 24″, priced per set of four wheels from €3,200.

The OX-U5 Tulum is a monoblock forged wheel with five split spokes. Each spoke leaves the hub in a short line, then divides into two long, tapering arms that run to the rim as they spread: ten fine, very taut points, and large arrow-shaped windows that reveal the brake caliper. Our OX-MX5 Veloce Evo also starts from five Y-spokes, but its arms join those of the next spokes at the rim and form a mesh of large triangles. On the Tulum, the arms stay free to the end, and the deep, stepped rim is mirror-polished: a two-tone wheel, in a single piece. The centre cap, in the colour of the wheel, carries the OX monogram.

OX-U5 Tulum forged wheel, brushed silver

Offered from 18″ to 24″. It comes into its own on supercars and coupes from 20″.

How to order

Choose the diameter and the finish, then give your car's make, model and year: that is all we need to take your order. The Onyx Forged design office works out the measurements and submits them to you before machining.

Price by diameter

Every price is for a set of four wheels; delivery is free to 35 European countries.

OX-U5 Tulum: price of a set of four wheels by diameter
DiameterSet of four wheels
18″€3,200
19″€3,200
20″€3,300
21″€3,550
22″€3,750
23″€3,950
24″€4,100

Finishes

The finishes in the catalogue for this model, all at the same price for a given diameter:

  • Brushed silver
  • Satin black
  • Satin bronze
  • Anthracite grey

Another colour, from our palette or from a RAL or other reference, can be made for the whole wheel: the price shown does not change, whatever the colour. Write to customer service.

Cast or forged: what a wheel weighs

SizeClassic castForged monoblock
17″9–11 kg6.5–8 kg
18″10–12 kg7.5–9 kg
19″11–14 kg8.5–10.5 kg
20″13–16 kg9.5–12 kg
21–22″15–19 kg11–14 kg
23–24″18–22 kg13–16.5 kg

Indicative values, for one wheel. The exact weight depends on the design, the width and the offset.

Engineering and specifications

  • Material: forged 6061-T6 aluminium; forging closes up the porosity that a cast wheel can retain.
  • Construction: monoblock, 5-axis CNC machined from a single piece. The same design can be studied as a two-piece or three-piece wheel, on quotation from customer service.
  • Measurements: PCD (bolt pattern), offset (ET) and centre bore machined for your car, to the measurements the Onyx Forged design office submits to you before machining; no spacers or spigot rings to add.
  • Standards: wheels designed to JWL/VIA standards.
  • Packaging: set of four wheels.

Have a sketch or an idea for a design? Customer service replies with a quotation, and the Onyx Forged design office draws your wheel to your car's measurements.

Delivery, payment and warranty

Delivered in 4 to 8 working weeks, transit time included, from full payment, 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. Payment when you order on the website. At checkout, you pay by card or by bank transfer; Klarna is also offered, depending on your country and subject to acceptance. Card limit too low? Choose bank transfer at checkout. Free delivery to mainland France (including Corsica), Monaco, the whole European Union, Switzerland, the United Kingdom, Norway, Iceland, Andorra, San Marino and Liechtenstein, and to the French overseas departments and territories on quotation, which sets the delivery time. For a delivery subject to customs (overseas departments and territories, Switzerland, Great Britain…), import duties, taxes and customs clearance fees are paid by the recipient. Terms and Conditions.

5-year Onyx Forged commercial warranty from the date of delivery, covering manufacturing and material defects and structural failures not caused by abnormal use. This warranty is in addition to your statutory rights.

Their reviews of this model.

11 reviews collected earlier from customers of this model, reproduced here, newest first.

Average rating: 4.8 out of 5 · 11 reviews

  • 5 stars: 9
  • 4 stars: 2

  • Les jantes sont irréprochables, assemblage net, lèvre sans défaut, cotes exactes. L'étoile en moins est pour le transporteur, qui a livré onze jours après la date annoncée avec un suivi resté muet. Rien à reprocher à Onyx.

    Rating: 4 out of 5

    Morgane L.

  • Rendu 3D de la Tulum sur ma 992 avant l'usinage, cotes et largeur de voile validées par écrit, photos avant l'envoi. Le résultat est fidèle au rendu, le centre or est superbe sur une carrosserie noire. merci à l'équipe pour sa disponibilité tout du long.

    Rating: 5 out of 5

    Alexis F.

  • Tulum sur mon Urus 🔥🔥 Centre noir satiné, lèvre polie, c'est le combo parfait. Finition irréprochable.

    Rating: 5 out of 5

    Camille H.

  • Two-piece Tulum with anthracite centre and polished lip on my Bentley Continental GT. Assembly is clean with no play at all, the lip depth was chosen with the design office and the fitment was confirmed by email before machining. Delivered within the quoted lead time.

    Rating: 5 out of 5

    Daniel M.

  • Livraison à Monaco offerte comme indiqué sur le site, transporteur tracé et assuré. Les Tulum sont magnifiques sur ma Classe S, la lèvre polie accroche la lumière de partout.

    Rating: 5 out of 5

    Sonia B.

  • tulum centre gris anthracite levre polie sur mon range rover sport, elles en imposent. montees direct, aucune bague a ajouter, zero vibration

    Rating: 5 out of 5

    Kévin D.

  • Un assemblage 2 pièces d'une grande propreté et une lèvre polie sans la moindre ondulation. Les cotes ont été soumises par le bureau d'études avant l'usinage et le délai annoncé a été respecté.

    Rating: 5 out of 5

    Christine V.

  • Produit parfait, la lèvre est superbe et l'assemblage est nickel. Par contre un carton est arrivé enfoncé sur un angle et le livreur a était impossible à joindre. La jante n'a rien, elle était bien protégée.

    Rating: 4 out of 5

    Yoann P.

  • Première jante 2 pièces pour moi et je comprends l'intérêt : la profondeur de lèvre se règle au millimètre avec le bureau d'études, et ça se voit sur la voiture. Centre noir satiné, lèvre polie, montée sur ma Panamera. Assemblage propre, aucun jeu.

    Rating: 5 out of 5

    Raphaël C.

  • Deuxième train de jantes Onyx, le premier en monobloc. Même sérieux dans la validation des cotes, et le 2 pièces apporte en plus le choix de la lèvre. La Tulum sur ma CLS 53 est très élégante. Délai tenu, emballage soigné.

    Rating: 5 out of 5

    Frédéric L.

  • Profonde. Élégante. Assemblage parfait. Cotes exactes. Délai tenu. Bravo.

    Rating: 5 out of 5

    Élodie M.

All reviews received are published, with no filtering by rating. How we check reviews

Questions about the OX-U5 Tulum

Will the OX-U5 Tulum fit my car?

It is machined to your car's measurements. Give your car's make, model and year when you order: the Onyx Forged design office works out the PCD (bolt pattern), the offset (ET) and the centre bore, and submits them to you before machining. No spacers or spigot rings are needed. Our guides: PCD, bolt pattern and centre bore and brake caliper clearance.

What tyre size goes with a bigger wheel?

Our tyre size calculator compares your original tyre with a size for the new rim diameter: overall diameter, sidewall height and speedometer error, against the ETRTO tolerance. Your vehicle handbook, the tyre placard and your insurer have the final say. Our guide: How to read a tyre size (and the load and speed index).

Does the finish change the price of the OX-U5 Tulum?

No. Every finish listed on this page costs the same for a given diameter, and another colour, from our palette or from a RAL or other reference, does not change the price shown either.

The other models

All the models in the catalogue · The monoblock construction

The same model, make by make

Each set is machined for a specific vehicle: the pages below bring together the models and generations already covered, make by make.

Guides and tools

Read before you choose, or check a fitment yourself:

All our guides · All tools