Modulare B33 Forged Monoblock Wheels
Modulare B33 Forged Monoblock Wheels
The Modulare B33 is a precision-engineered forged monoblock wheel produced in the United States from aerospace-grade 6061-T6 aluminium billet. Machined as a single, seamless piece, it delivers maximum structural rigidity and the purest possible weight-to-strength ratio — with no joints, no bolts, and no compromise. Every B33 is finished to order in your choice of colour, lip depth, and surface treatment, making it one of the most versatile custom monoblock programmes available from a US manufacturer.
Modulare's forged monoblock process begins with a solid 6061-T6 aluminium billet that is compression-forged under high pressure to align the grain structure for maximum fatigue resistance. The blank is then CNC-machined to final geometry across multiple axes, producing a wheel whose dimensional tolerances and surface finish are consistent to within fractions of a millimetre. The result is a wheel that is significantly stronger and lighter than anything produced by casting or flow-forming.
Why Choose a Forged Monoblock?
The monoblock design eliminates every variable introduced by multi-piece assembly — there are no barrel bolts to work loose under cornering loads, no sealant joints to inspect, and no tolerance stack from fitting two or three separate components together. A forged monoblock is the engineer's choice for uncompromised structural performance in a single-piece format. The B33 inherits all of these advantages in a design that can be fully customised to your vehicle and build specification.
Available Sizes — Modulare B33
- Diameters: 18" | 19" | 20" | 21" | 22" | 23" | 24"
- Widths: 7.5J – 14.5J (custom widths available)
- Offsets: ET10 – ET55 (vehicle-specific)
- PCD: 5×112 | 5×114.3 | 5×120 | 5×130 | and others on request
Need a Different Size?
Every Modulare B33 is built to specification — if your vehicle calls for a diameter, width, or offset not listed here, contact our fitment team and we will source or configure it. We also offer an AI Wheel Design Service if you want a custom spoke pattern or finish concept designed before production begins.
Technical Specifications
- Construction: Forged monoblock (1-piece)
- Material: 6061-T6 aerospace-grade aluminium billet
- Manufacturing: CNC-machined from a single forged blank, USA
- Available Diameters: 18" | 19" | 20" | 21" | 22" | 23" | 24"
- Available Widths: 7.5J – 14.5J
- Centre Bore: Custom hub-centric bore to match your vehicle
- Hardware: Stainless-steel centre-cap hardware included
- Finish: Full custom programme — gloss, satin, matte, brushed, polished lip, two-tone, colour-matched, candy, chrome
- Lead Time: 6–10 weeks from order confirmation
Finish Options
Modulare offers an extensive custom finish programme for the B33. Standard options include gloss black, brushed silver, satin gunmetal, and anthracite. Premium options extend to two-tone machined lip, polished face, candy colours, and full custom RAL or paint-code matching. All finishes are applied after CNC machining and may be combined — for example, a gloss black face with a high-polish lip.
Because the B33 is machined from a single piece of billet, surface treatments that require polishing or brushing can be applied continuously across the entire visible face without interruption at a seam or joint. This makes the monoblock format ideal for mirror-polish, PVD chrome, and full electroplating finishes. Modulare's finishing partners operate powder-coat, wet-spray, and PVD lines in-house, with consistent colour control across full four-wheel sets. A physical finish sample can be requested before production confirms for custom or OEM-matched colours.
Manufacturing and Quality Control
Each Modulare B33 begins as a certified 6061-T6 aluminium billet sourced from aerospace-approved stock. The billet is press-forged under high tonnage to produce a near-net-shape disc, aligning the internal grain structure in the radial pattern that mirrors the final spoke geometry and maximises fatigue resistance. The disc is then rough-turned on a CNC lathe, semi-finished to define spoke profiles, and finish-machined in a 5-axis CNC centre to achieve precise spoke contours, face angle, and lip detail.
After CNC machining, every wheel undergoes T6 artificial ageing to achieve full material hardness. Dimensional inspection is performed using coordinate-measuring machines (CMM) to verify spoke thickness, rim bead seat diameter, and hub bore to within prescribed tolerances. Visual inspection checks for surface finish consistency, machining marks, and any anomalies before the wheel enters the finishing stage. Only wheels that clear all inspection gates advance to painting, anodising, or polishing. This manufacturing discipline is why Modulare consistently meets JWL/VIA and TÜV structural requirements across their entire diameter and width range.
Vehicle Fitment Guide
The Modulare B33 monoblock suits a wide range of European and American performance vehicles. Common fitments include BMW 3–8 Series (5×112), Mercedes-AMG C/E/S-Class (5×112), Audi RS3–RS7 (5×112), Porsche 911/Cayenne (5×130), Ford Mustang (5×114.3), and Chevrolet Camaro/Corvette (5×120). Hub-centric spacers and extended wheel bolts can be supplied on request.
For lowered vehicles or those with wider arches, Modulare can configure the B33 with a custom offset to achieve the ideal stance without rubbing. Concave depth on a monoblock is determined at the machining stage — specify your preferred face profile (flat, slight concave, deep concave) when placing your order, and the CNC programme will be adjusted accordingly.
Other Bolt Patterns Available
While 5×112 and 5×114.3 cover the majority of applications, Modulare can produce the B33 in any bolt pattern on request — including 5×108, 5×120, 5×130, 6×139.7, and others. Minimum order quantities may apply for non-standard PCD configurations.
How the Modulare B33 Compares
| Feature | Modulare B33 (Monoblock) | Generic Cast Wheel | Standard 3-Piece Forged |
|---|---|---|---|
| Construction | 1-piece forged monoblock | Cast alloy | 3-piece bolted |
| Material | 6061-T6 aerospace billet | A356 cast alloy | 6061-T6 forged |
| Weight | Lightest possible (no hardware) | Heaviest | Moderate (hardware adds weight) |
| Rigidity | Maximum (no joints) | Low | Good, but joint-dependent |
| Customisation | Diameter, width, offset, finish | Fixed sizes | Barrel depth, finish, hardware |
| Origin | USA | Various | Various |
Modulare Lineup — Explore Other Models
- Modulare B3 — classic 5-spoke monoblock, the benchmark of the B series
- Modulare B7 — 7-spoke monoblock with deep concave face
- Modulare B14 — twin-5-spoke design, directional forged monoblock
- Modulare B18 — high-concave monoblock with mesh-inspired spoke layout
- Modulare B30 — 3-spoke monoblock for an aggressive, open-face look
- Modulare B33 — 10-spoke monoblock with a refined OEM+ profile
- Browse all forged wheels at Hodoor World
Can't Find the Right Wheel?
Hodoor offers a custom forged wheel manufacturing service for sizes, offsets, and finishes not covered by standard catalogues. Whether you need an extreme concave profile, a rare bolt pattern, or a completely bespoke spoke design, our production partners can accommodate it. You can also use our AI Wheel Design Service to visualise your concept before production begins.
How to Order Modulare B33 Wheels
- Confirm your vehicle's PCD, centre bore, and desired offset using a fitment guide or our specialist team
- Choose your diameter and width combination from the Available Sizes section above
- Select your finish — consult the Modulare finish chart or request a custom colour match
- Submit your order through Hodoor World; a fitment confirmation will be issued within 24 hours
- Production begins on receipt of deposit; estimated lead time is 6–10 weeks
- Wheels are inspected, packed, and shipped worldwide with full insurance coverage
Frequently Asked Questions
Are Modulare B33 wheels TÜV-rated?
Modulare forged monoblock wheels are engineered to meet or exceed JWL/VIA and TÜV standards. Individual certification documents are available on request for specific diameter and width combinations.
Can I order a brushed or polished finish?
Yes. Modulare's finish programme includes brushed silver, polished face, polished lip, and full mirror polish. Custom two-tone combinations are also available.
What is the lead time for Modulare B33?
Standard production takes 6–10 weeks from order confirmation and deposit. Rush production may be available — contact Hodoor World for current availability.
Do you supply centre caps and bolts?
Centre caps are included as standard. Extended wheel bolts or lug nuts can be supplied separately; please specify your vehicle at the time of order.
Is a single-wheel order possible?
Yes. Modulare accepts single-wheel orders for replacements. Additional shipping charges may apply for singleton orders.
Discover Hodoor World
Hodoor World is a specialist forged wheel retailer connecting enthusiasts and professionals with the world's leading manufacturers. Our catalogue spans over 500 wheel models from brands in the USA, Japan, and Europe, with expert fitment advice for every listing. Read verified owner reviews on Trustpilot or explore our full catalogue at hodoor.world. For enquiries, reach us at [email protected].
Wheel Care and Maintenance
Forged monoblock wheels require minimal maintenance compared to multi-piece designs. Clean regularly with a pH-neutral wheel cleaner and a soft microfibre cloth. Avoid acidic or alkaline cleaners, wire brushes, or steam pressure near the centre bore. For polished or brushed finishes, apply a dedicated metal sealant every 3–4 months to protect against oxidation. Inspect spoke roots and the bead seat annually for any signs of road damage or corrosion.
International Delivery
Hodoor World ships Modulare B33 wheels worldwide. All orders are fully insured and tracked. Delivery timelines vary by destination — typically 5–10 business days after production. Import duties and taxes are the buyer's responsibility and vary by country. For freight quotes and customs guidance for your region, contact us at [email protected].
