Quantum44 ZF-5 Two Piece Forged Wheels

Quantum44 ZF-5 Two Piece Forged Wheels — UK Full Forged

The Quantum44 ZF-5 Two Piece is a two-piece full billet forged wheel — a turbine-blade inspired forged design with ten narrow spokes, high visual contrast, and aerodynamic suggestion. The ZF-5 Two Piece separates the forged face from a separately manufactured barrel, enabling deeper concave profiles and rim widths beyond the practical limit of single-piece machining. Quantum44 builds every set to order at its UK facility, specifying diameter, width, offset, PCD, and finish to the customer's exact brief. The ZF-5 carries Quantum44's standard forged specification: 6061-T6 aluminium, multi-axis CNC machining, and structural testing to European load standards.

Available Sizes

• Diameters: 13" | 14" | 15" | 16" | 17" | 18" | 19" | 20" | 21" | 22" | 23" | 24"
• Available Widths: 8.0" – 14.0"
• Standard catalogue sizes: 18", 19", 20", 21", 22"
• PCD options: 5×112, 5×120, 5×114.3, 5×130 — standard; any PCD — built to order
• Offset (ET): Multiple ET options; staggered front/rear configurations supported
• Centre bore: Hub-centric, sized to vehicle specification

Need a Different Size or Bolt Pattern?

The ZF-5 Two Piece Forged is available beyond the standard catalogue. If your vehicle requires a specific diameter, width, offset, or PCD not listed, contact us at [email protected] and we will confirm availability and lead time. We also offer an AI Wheel Design Service if you want a custom spoke concept or finish visualised before production begins.

Technical Specifications

• Manufacturing process: Two Piece
• Material: 6061-T6 aerospace-grade forged aluminium billet
• Machining: Multi-axis CNC — face, spokes, and hub flanges in one programme
• Yield strength: ≥276 MPa (standard for 6061-T6 solution heat-treated and aged)
• Design: a turbine-influenced ten-spoke layout with blade-like spokes that taper sharply from a wide hub base to a narrow rim contact. The design suggests motion even at rest — the blade cross-section and narrow tip create a high-contrast shadow line that reads strongly in photographs and at a distance.
• Finish: The ZF-5 Two Piece is finished to client specification. Options include gloss or satin painted (any RAL/BS colour), brushed with anodising, polished face with painted barrel, and full polished. Two-piece construction allows independent finishing of face and barrel.
• Hub-centric fit: Yes — bore machined to vehicle hub diameter
• Origin: Manufactured in England, United Kingdom

ZF-5 Two Piece Forged — Design & Engineering Detail

The blade profile of the ZF-5 spokes — wider at the base, narrower at the tip — is an efficient structure for spoke bending loads. The high aspect ratio (depth:width) of the cross-section improves resistance to out-of-plane bending (the load that occurs during cornering) while the narrow tip minimises the rotational mass at the outer radius, where the contribution to wheel moment of inertia is highest.

Why Full Billet Forged? The Technical Case

Full billet forging starts with a solid block of 6061-T6 aluminium. Under high press tonnage, the billet is shaped, establishing a grain structure aligned with the finished part's stress paths. Subsequent CNC machining removes material to achieve the final geometry. The result is a wheel with no porosity, no inclusions, and a consistent grain structure — properties that cannot be replicated in cast, semi-cast, or flow-formed processes. Yield strength exceeds 276 MPa, compared to 180–220 MPa in gravity-cast alloys. Billet forging is the manufacturing process used in motorsport, aerospace structural components, and the top tier of the custom wheel industry. The weight reduction vs. cast is real and measurable: a forged 20×10 monoblock typically runs 1.5–2.5 kg lighter than a cast equivalent in the same design, reducing unsprung rotating mass and improving the entire dynamics envelope — steering response, braking stability, ride quality, and acceleration.

ZF-5 Two Piece Design Language

The ZF-5 is the highest spoke-count model in the ZF series — ten blade-like elements arranged with turbine-inspired geometry. Each blade is narrow, with a cross-section that tapers from a wider hub base to a near-knife edge at the rim. The spacing between blades is deliberate — close enough to create a dense face, far enough that individual blades remain readable. At speed, the ZF-5 creates a visual blurring effect that is associated with turbine and fan geometries, giving the wheel a sense of velocity that other designs in the range do not produce. The blade cross-section is the most technically challenging element of the ZF-5's production: achieving a thin, consistent wall across ten identical spokes in a single billet forging requires tight process control and precision fixturing. Material removal is substantial — the finished ZF-5 is milled from a billet that weighs roughly four times the finished weight of the wheel. The CNC programme for a single ZF-5 involves multiple clamping setups and several hours of machine time. The result, however, is a wheel with no visual equivalent in the UK market at this price point — genuinely turbine-grade geometry in a road-legal alloy. In two-piece form, the ZF-5 face gains additional aesthetic flexibility: the barrel is manufactured separately, allowing deeper concave profiles and wider reverse lips than single-piece machining permits. The face design remains identical to the Monoblock version, but the two-piece assembly means the barrel offset can be adjusted during the build rather than fixed at manufacturing stage.

ZF-5 Two Piece: Two-Piece Construction Advantages

The ZF-5 Two Piece applies turbine-blade geometry to a construction that offers practical advantages for aggressive daily-driver and modified-road builds. The most significant is barrel replaceability: in daily use, kerb strikes more commonly damage the outer barrel lip than the face. With a two-piece wheel, a kerbed barrel can be replaced without discarding the machined face — a considerable cost saving on a premium forged product. Quantum44 supplies replacement barrels for in-production ZF models; lead time for a replacement barrel is shorter than a full wheel lead time. The ZF-5 Two Piece's ten-blade face performs identically in two-piece form to the Monoblock in terms of structural performance at road use loads — the added mass of the assembly hardware is offset by the barrel weight reduction that two-piece construction enables (a thinner barrel wall is structurally acceptable when the face carries the primary load path). Net weight difference between ZF-5 Monoblock and Two Piece in the same size and offset is typically less than 0.4 kg per wheel.

ZF-5 Two Piece Target Platforms

The ZF-5 Two Piece suits builds where the turbine aesthetic is paired with aggressive fitment requiring specific offset precision. Track builds on BMW M2 or M3 that need sub-ET-20 offsets to achieve flush fitment with stock arches, Audi TT RS builds on 5x112 with wide-body arch kits, and Honda NSX or Type R builds requiring exact fitment from Quantum44's custom offset range are strong Two Piece candidates. Daily driver application: the barrel replaceability of the two-piece format reduces the replacement cost when kerb damage occurs, which is a meaningful factor for a premium forged wheel in regular urban use.

Vehicle Fitment Guide — Platforms the ZF-5 Two Piece Forged Was Designed For

The ZF-5 Two Piece Forged is built to order and fits any platform — PCD, offset, and centre bore are specified at order. Most commonly fitted to:

• BMW M-series: M3, M4, M5, M8 — 5×120; the ZF-5 suits performance platforms where the spoke design's structural and aesthetic character is a primary consideration
• Audi RS-series: RS4, RS5, RS6, RS7 — 5×112; confirm ET against wide-arch body kit if applicable
• Porsche: 911 (991, 992), Cayenne — 5×112 or 5×130 depending on model year and variant
• Mercedes-Benz AMG: C63, E63, S63, AMG GT — 5×112; common for track-oriented builds
• Custom / bespoke: Lamborghini, Ferrari, McLaren — centre-lock and custom-PCD variants available on request

Correct fitment is the buyer's responsibility — verify PCD, ET, centre bore, and tyre size against your vehicle specification before ordering. Hodoor World offers a pre-order fitment advisory service on request.

Other Bolt Patterns — Available to Order

In addition to the standard PCDs, the ZF-5 Two Piece Forged is available in the following bolt patterns to order:

• 5×108 — Ford ST/RS, Volvo V40/V60/V90, Jaguar F-Type, Citroën DS
• 5×114.3 — Honda Civic Type R, Lexus IS/RC, Nissan 370Z/GT-R, Infiniti Q50, Kia Stinger, Hyundai i30N
• 5×120 — BMW, Rolls-Royce, Land Rover Defender, Range Rover
• 5×130 — Porsche 911 (all variants), Cayenne (pre-2018), Panamera
• 5×112 — Audi, Mercedes-Benz, Volkswagen, Lamborghini (some models)
• Centre-lock — Porsche GT3/GT3 RS, Ferrari, Lamborghini — specify on enquiry

Non-standard PCD lead time is typically 4–6 weeks. Contact [email protected] with your vehicle details.

How the ZF-5 Two Piece Forged Compares

Explore the Quantum44 Lineup at Hodoor World

• Quantum44 ZF-1 Monoblock — full forged ZF-1 monoblock
• Quantum44 ZF-2 Monoblock — a five-spoke split forged design that bridges the gap between a traditional multi-spoke and a twin-spoke aesthetic
• Quantum44 ZF-3 Monoblock — a seven-spoke forged monoblock with a clean, restrained profile suited to executive and GT platforms
• Quantum44 ZF-5 Monoblock — same design in one-piece monoblock — lighter, more rigid
• Quantum44 ZF-6 Monoblock — the deepest concave design in the ZF range — an eight-spoke show-grade forged wheel for builds where visual depth is the priority
• Quantum44 SFF-2 — flow forged alternative — 20–21", three finishes, immediate availability
• Browse all forged wheels at Hodoor World

Can't Find the Right Wheel? Order Custom Forged

If the ZF-5 Two Piece Forged is close but not quite right — different finish, unusual offset, or a spoke pattern beyond the Quantum44 catalogue — Hodoor offers a custom forged wheel manufacturing service. We work with Quantum44 and other UK and European manufacturers to build one-off and short-run sets to exact specification. Lead time typically 4–8 weeks. You can also use our AI Wheel Design Service to visualise your concept before production begins.

How to Order

1. Contact Hodoor — email [email protected] with your vehicle make/model/year, required diameter, width, offset, and PCD
2. Specify your finish — colour, texture, and hardware finish confirmed in writing before production begins
3. Receive a quote and lead time — Quantum44 provides a confirmed build spec and production lead time (typically 4–6 weeks for monoblock, 4–8 weeks for two-piece)
4. Approve and pay deposit — production begins on deposit receipt
5. Dispatch and delivery — full tracking provided; international delivery typically adds 3–7 working days

Frequently Asked Questions

Is the ZF-5 Two Piece Forged available in any colour?
Yes — as a full billet forged product, the ZF-5 Two Piece Forged is finished to specification. Any painted, brushed, or polished finish can be specified. Contact [email protected] for details.

What PCDs does the ZF-5 Two Piece Forged support?
Standard PCDs are 5×112, 5×120, 5×114.3, 5×130. Additional bolt patterns are available to order — any PCD — built to order. Contact [email protected] with your vehicle's PCD to confirm.

How do I know what offset to choose?
Offset (ET) determines how far the wheel face sits from the hub mounting face. A correct ET ensures the tyre clears the suspension components and sits flush within the arch. The right ET depends on your vehicle's hub, brake caliper, and suspension geometry. Contact [email protected] with your vehicle details for a recommendation before ordering.

Is the ZF-5 available as a monoblock or two-piece?
Both variants are produced. The ZF-5 Two Piece features a separately constructed barrel, enabling deeper concave profiles and wider rim widths than the monoblock version. Both share the same face design. Order the Monoblock if you prioritise minimum wheel mass or want the single-piece construction for motorsport applications.

What colours are available on the ZF-5 Two Piece?
Any colour — the ZF-5 is finished to specification. Common choices include: Gloss Pearl White, Satin Carbon Grey, Brushed Titanium with clear, Polished face/Gloss Black barrel, Full Polished. Two-piece construction allows contrasting face and barrel finishes. Submit your spec to [email protected] for a quote.

Does Hodoor World offer a fitment advisory service?
Yes. If you are unsure about PCD, ET, width, or tyre sizing for your vehicle, contact us at [email protected] before ordering. We will confirm the correct specification for your platform.

Discover Hodoor World: Your Ultimate Car Customisation Destination

Hodoor World is an independent specialist in premium and custom forged wheels, sourcing directly from UK, European, and US manufacturers. Our catalogue spans flow-formed, fully forged, and multi-piece programmes — all with fitment advisory, direct dispatch, and global shipping. Browse the full selection at hodoor.world, read verified reviews on Trustpilot, or contact us at [email protected] for purchasing advice.

Wheel Care

Full billet forged wheels with a painted or polished finish require regular cleaning to maintain appearance and protect the surface. Rinse after each drive in wet or road-salt conditions. Use a pH-neutral wheel cleaner — acid-based products will attack anodised and polished finishes. Apply a ceramic wheel sealant every 3–4 months to protect the topcoat. For polished wheels, a dedicated metal polish applied monthly will prevent oxidation. Torque wheel nuts to your vehicle manufacturer's specification (typically 110–140 Nm for M14×1.5 fasteners on performance platforms) after fitment and again after 50 km.

ZF-5 Two Piece Forged — International Delivery

Hodoor World ships the ZF-5 Two Piece Forged worldwide. As a made-to-order product, production lead time is 4–8 weeks before dispatch. International shipping typically adds 3–7 working days. All orders ship with full tracking; customs declared at accurate value. Import duties and local taxes are the recipient's responsibility. For freight quotes to specific destinations, contact [email protected].