3SDM 3.71 FR Series 3-Piece Forged Wheels

3SDM 3.71 FR Series 3-Piece Forged Wheels — Fully Modular 3-Piece Forged Construction

The 3SDM 3.71 FR Series makes a statement through spoke geometry alone — a bold, high-spoke-count design where the individual spoke faces carry enough surface area to showcase complex finishes while maintaining the structural rigidity demanded by a wheel that spans from 13 to 24 inches in diameter. Forged at 3SDM's UK facility in three separate components — face, outer step-lip rim, and inner barrel — the 3.71 is assembled to the buyer's complete specification: PCD, offset, hardware finish, barrel width, and face profile are all chosen at the time of order with no additional tooling cost. The FR (flat-face) configuration is 3SDM's standard base profile for the 3.71; FX2 introduces a concave bowl suited to deep-dish and show builds; FX3 pushes to an extreme X-concave depth for the most visually aggressive fitments in the lineup. 3SDM engineers validate every 3.71 configuration using FEA software and proprietary loading scenarios — certifiable to JWL VIA, ISO, and TUV on request.

Available Sizes

• Diameters: 13" | 14" | 15" | 16" | 17" | 18" | 19" | 20" | 21" | 22" | 23" | 24"
• Widths: 5.0" – 14.5"
• Construction: FR Series — 3-piece modular forged with fully configurable profile
• Profile options: FR (flat face) | FX2 (concave) | FX3 (X-concave / extreme concave)
• PCD options: 4x100, 4x108, 4x114.3, 5x100, 5x108, 5x112, 5x114.3, 5x120, 5x130, 5x150, 6x114.3, 6x139.7, and others on request
• Offset (ET): Made to order — any ET to clear your brake setup and fender line
• Hardware options: Hidden or exposed; Chrome, Black, Gold, Neo Chrome (Titanium and painted upgrades available)

Recommended fitment notes: 3SDM engineers each set to your car. Submit your make, model, year, brake package, and target stance, and the 3SDM team will confirm the optimal diameter, width, and offset combination. Custom step lips and barrel depths are part of every specification.

Need a different size or bolt pattern? The 3.71 is a fully bespoke build — 3SDM manufacture this model in any size, offset, and PCD on request. We also offer an AI Wheel Design Service if you want a custom concavity profile or spoke finish on the 3.71 platform. Contact us at [email protected] and we will source the right fitment for you.

Technical Specifications

• Manufacturing: 3-piece modular forged construction, assembled with precision CNC-machined components
• Material: 6061-T6 aerospace-grade forged aluminium alloy
• Profile variants: FR (flat face) | FX2 (concave bowl) | FX3 (extreme X-concave)
• Back Pad: Optional CNC back-pad pocketing for weight reduction; includes wheel data markings and authentication number
• Hardware: Chrome | Gloss Black | Gold | Neo Chrome — Titanium and custom painted upgrade available
• Front Lip: Euro step lip (standard); custom step-lip depths on request
• Center cap: CNC 3SDM logo cap as standard; custom logos and white-label centre caps available for all configurations
• Engineering: FEA (Finite Element Analysis) software used with proprietary loading scenarios to simulate wheel strength and fatigue life
• Certification: JWL VIA | ISO | TUV — all current standards can be adopted on request
• Assembly: Hand-assembled and inspected at 3SDM UK facility
• Origin: Designed, engineered, and manufactured in the United Kingdom by 3SDM Wheel Co.
• Build lead time: Made to order — contact for current lead time

Engineering advantage: 3SDM's modular FR Series separates the wheel face, inner barrel, and outer rim into three independently manufactured components. This separation allows each piece to be machined to tighter tolerances than a single-piece casting or flow-form — the face is forged to the precise spoke geometry, the barrel is rolled to the exact width, and the rim halves are CNC-profiled to match the chosen step-lip depth. The result is a wheel with measurably better concentricity, lower unsprung mass for a given stiffness target, and a wider range of fitments than any production-run wheel can cover.

Finish and Color Options

• Brushed: Brushed Silver, Brushed Bronze, Brushed Titanium, Brushed Anthracite, Brushed Smoke, Brushed Gold
• Gloss: Gloss White, Gloss Black, Gloss Gunmetal, Gloss Bronze, Gloss Anthracite, custom RAL/NCS paint codes
• Matte: Matte Black, Matte Gunmetal, Matte Bronze, Matte Anthracite, Matte Silver
• Premium upgrades: Two-tone face + barrel, polished lip + matte face, exposed forged grain, mirror-polished lip, diamond-cut accents
• Hardware finishes: Chrome, Gloss Black, Gold, Neo Chrome, Titanium, body-colour painted
• Powder coat and custom match: 3SDM can match any factory OEM paint code, wrap colour, or custom colour reference — sample chips and colour approval photos before production start

All finish work is carried out at the 3SDM facility in the United Kingdom. Every completed set receives a final quality inspection before crating.

Vehicle Fitment Guide — Cars the 3.71 FR Series Was Built For

The 3.71 FR Series is a fully made-to-order 3-piece forged wheel — PCD, offset, and brake clearance are specified at the time of order, not constrained by shelf inventory. The modular FR Series construction is most frequently configured for the following platforms:

• Porsche: 911 (991, 992) Carrera, Turbo, GT3 — 5x130 standard; GT3 RS / Turbo S center-lock supported
• Lamborghini: Huracán (EVO, STO, Tecnica), Urus, Aventador — 5x112 and center-lock
• Ferrari: 488 GTB / Pista, F8 Tributo, 812 Superfast, Roma — 5x108 and center-lock
• McLaren: 720S, 765LT, 570S, GT, Artura — 5x108
• Audi: R8 V10, RS6 Avant (C8), RS7, TTRS — 5x112
• Mercedes-AMG: GT / GT R / Black Series, G 63 (W463/W464), E 63, S 63 — 5x112
• BMW: M3 (G80), M4 (G82/G83), M5 (F90/G90), M8, X5 M, X6 M — 5x120
• Nissan: GT-R R35 — 5x114.3
• Toyota: GR Supra, GR Yaris, GR86 — 5x114.3 and 5x100
• Volkswagen: Golf GTI / R (Mk8), Arteon R — 5x112
• Lexus: LC 500, LFA, IS F — 5x114.3
• Ford: Focus RS (Mk3), Mustang Shelby GT500 — 5x108 and 5x114.3

Not sure whether the 3.71 fits your specific build? Send your make, model, year, and brake package to [email protected] — we will confirm fitment, offset, and lead time within 24 hours.

Other Bolt Patterns — Manufactured to Your Specification

The 3.71 FR Series is assembled to order, making the PCD entirely configurable at no additional charge for standard bolt patterns:

• 5x130 — Porsche 911 (991, 992), Cayenne, Panamera, Macan, Boxster, Cayman
• 5x112 — Audi RS-series, Mercedes-AMG, VW Golf R, Lamborghini Huracán, Bentley Continental GT / Flying Spur
• 5x120 — BMW M3 / M4 / M5 / M8 / X5 M / X6 M (G-series), Rolls-Royce
• 5x114.3 — Nissan GT-R, Lexus LC / LFA / IS F, Toyota Supra / GR86, Infiniti Q50 / Q60 Red Sport
• 5x108 — Ferrari 488 / F8 / 812 / Roma, McLaren 540C / 570S / 600LT / 720S / 765LT, Aston Martin
• 6x139.7 — Land Rover Defender (L663), Range Rover Sport, Toyota Land Cruiser 200
• Center-lock — Porsche 911 GT3 RS / Turbo S, Lamborghini Aventador SVJ, Ferrari 488 Pista, McLaren 720S / 765LT

Lead time for custom PCD builds: enquire via [email protected] for current scheduling.

3SDM 3.71 FR Series — Configuration Comparison

All three configurations share the same spoke design and PCD options — the profile is chosen at order time. FR is the base configuration suited to street and daily use; FX2 and FX3 deliver progressively deeper concave profiles for stance and show applications.

Explore the 3SDM Forged Lineup at Hodoor World

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• 3SDM 1.01-R Forged Wheels — 1-piece BTO monoblock
• 3SDM 1.10-R Forged Wheels — 1-piece BTO twin-spoke monoblock
• 3SDM 0.50 Flow-Formed Wheels — spin-forged lightweight design
• Browse all forged wheels at Hodoor World

Can't Find the Right Wheel? Order Custom Forged

If the 3.71 FR Series is close but not exactly right for your build — different concavity depth, additional spoke count, bespoke step-lip — Hodoor offers a custom forged wheel manufacturing service. Send us any reference image or sketch, and we manufacture the wheel in any size, any colour, and any bolt pattern — fully forged from 6061-T6 aluminium to the same engineering standards as catalogue brands including 3SDM. Production takes 3–6 weeks with worldwide delivery, and pricing is often competitive with premium European catalogue fitments. Contact us at [email protected] or via WhatsApp +44 7488 818747 for a quote.

How to Order the 3SDM 3.71 FR Series

1. Send your car details — make, model, year, brake package, and preferred finish to [email protected] or WhatsApp +44 7488 818747.
2. Fitment quote within 24 hours — we confirm diameter, width, offset, PCD, profile (FR/FX2/FX3), hardware finish, and step-lip depth; a 3SDM specialist reviews the build sheet.
3. Invoice and deposit — production begins once the deposit is received (bank transfer or card accepted).
4. Build lead time — each set is assembled and finished to your specification; progress photos are sent before crating.
5. Worldwide delivery, fully insured — wheels are shipped door-to-door with tracked courier service, full export documentation, and insurance for the replacement value.

Frequently Asked Questions

What is the 3SDM 3.71 FR Series?
It is the base flat-face 3-piece modular forged variant of the 3SDM 3.71 design — manufactured from 6061-T6 aerospace-grade forged aluminium at the 3SDM facility in the United Kingdom. The FR Series designation refers to the flat-face base configuration; the same 3.71 spoke pattern is available in FX2 (concave) and FX3 (X-concave) profiles for customers targeting deeper dish or extreme stance applications. Every set is built to the buyer's exact car — PCD, offset, step-lip depth, and hardware finish are all specified at the time of order.

What cars does the 3.71 FR Series fit?
Any modern performance or luxury platform — common fitments include Porsche 911 / Cayenne, Lamborghini Huracán / Aventador, Ferrari 488 / F8 / 812, McLaren 720S / 765LT, Audi RS-series, Mercedes-AMG G 63 / GT, BMW M3 / M4 / M5 / M8, Nissan GT-R, and Rolls-Royce. Every set is built to your exact PCD, offset, and brake clearance — no shelf inventory, no compromise on fitment.

What is the difference between FR, FX2, and FX3?
All three are 3-piece configurations of the same 3.71 spoke design. FR has a flat face — the classic 3-piece look with a clean face plane. FX2 adds a concave bowl to the spoke face — deeper draw toward the centre, suited to stance and show builds. FX3 takes this further with an extreme X-concave profile — the deepest concavity 3SDM offer on this design. The three can be ordered with the same hardware and colour options; the profile is the only structural difference.

Are the 3.71 FR Series wheels certified?
Yes. 3SDM uses FEA (Finite Element Analysis) with proprietary loading scenarios and can certify wheels to JWL VIA, ISO, and TUV standards on request. Certification documentation is supplied with the order — useful for track-day scrutineering and EU type-approval requirements.

How long does it take to receive the wheels?
The 3.71 FR Series is made to order — there is no shelf inventory. Contact us via [email protected] for current production lead times. Worldwide shipping is typically 3–10 business days from despatch, depending on destination.

Can I get the 3.71 in a two-tone or custom colour?
Yes. 3SDM can finish the face and barrel in different colours (two-tone), match factory OEM paint codes, wrap colours, or fully custom RAL/NCS references. Sample chips and colour approval photographs are provided before production commences — no surprises on delivery.

Discover Hodoor World: Your Ultimate Car Customisation Destination

• Worldwide Shipping: No location is too remote — we deliver 3SDM forged wheels globally with full insurance and tracking to any country.
• Expert Fitment Support: Our specialists confirm bolt pattern, offset, and brake clearance before every order. Contact: [email protected] | WhatsApp: +44 7488 818747
• Trusted by Enthusiasts: Verified customer reviews on Trustpilot.
• Custom Build Service: From forged wheels to full wide-body kits — we design, source, and deliver bespoke automotive upgrades worldwide.

Wheel Care

• Clean with a pH-neutral wheel cleaner and a soft microfibre brush. Avoid alkaline or acid-based products — they can damage brushed, polished, and painted finishes on forged wheels.
• Rinse with cool or tepid water before applying any cleaning product; never apply product directly to hot wheels or brake rotors.
• Apply a dedicated wheel sealant or ceramic coating every 3–4 months to protect against brake-dust etching, UV degradation, and road salt.
• Torque wheel bolts to manufacturer specification using a calibrated torque wrench; re-check after the first 50–100 km following installation.
• Inspect regularly for kerb impact damage — 3-piece forged construction is highly impact-resistant, but any significant strike should be assessed by a wheel specialist before continued use at speed.
• Hardware bolts can be inspected and replaced independently — one of the advantages of 3-piece modular construction.

3SDM 3.71 FR Series — International Delivery

The 3SDM 3.71 FR Series ships regularly to customers across Europe, the Middle East, and Asia-Pacific from the 3SDM UK facility. In Western Europe the strongest markets are the Netherlands, Switzerland, and the United Kingdom. In the Gulf, the UAE and Saudi Arabia are consistent markets for hand-assembled British forged hardware. Mediterranean deliveries cover Cyprus, Turkey, and Greece. Every shipment from Hodoor includes full export documentation, tracked and insured logistics, and direct liaison between you and the 3SDM production team throughout the build process.