3D Design T521 2-Piece Forged Wheels
3D Design T521 — 2-Piece Forged Wheels for BMW 7/8 Series and X5/X6
The 3D Design T521 is a premium 2-piece forged aluminum wheel produced exclusively in Japan for BMW's large-diameter segment — 7 Series, 8 Series, and high-end X-line SUVs. Combining a precision-forged aluminium disc with a flow-formed rim, the T521 is built to 3D Design's exacting standards without compromise. Three distinct finish options — Brushed Black (BRB), Brushed Clear (BUA), and Brushed Black × Clear Rim (BRB-F) — allow owners to match the T521's signature multi-spoke design to any BMW exterior palette. Every T521 is manufactured to order in Japan, with custom offsets available in 1 mm increments.
Available Sizes
Standard catalogue sizes — all available with custom offsets by millimetre increment:
| Diameter | Width | Offset range (ET) | Rim type |
|---|---|---|---|
| 21" | 8.5J | +14 to +22 | Full reverse rim |
| 21" | 9.0J | +8 to +28 | Full reverse rim |
| 21" | 9.5J | +2 to +34 | Full reverse rim |
| 21" | 10.0J | −5 to +41 | Full reverse rim |
| 21" | 10.5J | −11 to +47 | Full reverse rim |
| 21" | 11.0J | −17 to +53 | Full reverse rim |
| 21" | 11.5J | −24 to +60 | Full reverse rim |
| 22" | 8.5J | −8 to +22 | Step rim |
| 22" | 9.0J | −14 to +28 | Step rim |
| 22" | 9.5J | −20 to +34 | Step rim |
| 22" | 10.0J | −27 to +41 | Step rim |
| 22" | 10.5J | −33 to +47 | Step rim |
| 22" | 11.0J | −39 to +53 | Step rim |
| 22" | 11.5J | −46 to +60 | Step rim |
| 22" | 12.0J | −52 to +66 | Step rim |
| 22" | 12.5J | −58 to +61 | Step rim |
- Diameters: 18" | 19" | 20" | 21" | 22" | 23" | 24"
- Hub bore: 66.6 mm
- Bolt pattern: 5×112 / 5×120 (contact for your specific BMW)
- 21" rim type: Full reverse rim — supports wide offset range across the full width selection
- 22" rim type: Step rim — maximises inner clearance for heavy-brake BMW SAV platforms
Need a Different Size?
The T521 is built as a full custom-forged program. Offsets are adjustable in 1 mm steps across the full permissible range for each width. Custom widths and diameters from 18" to 24" are available on request. Contact [email protected] with your chassis code and desired fitment.
Technical Specifications
- Construction: 2-Piece Forged — forged aluminium disc with flow-formed rim barrel
- Manufacturing origin: Japan — produced by 3D Design Corporation
- Standard diameters: 21" and 22"
- Widths: 8.5J through 11.5J (21") ; 8.5J through 12.5J (22")
- Hub bore: 66.6 mm
- Bolt pattern: 5×112 / 5×120 (confirm for your platform)
- Accessories: 3D Design centre emblem × 1, air valve × 1 per wheel
- Wheel bolts: Not included
- Custom offset: Available in 1 mm increments within published range
Finish Options
- Brushed Black (BRB): Disc — brushed × black anodised; Rim — black anodised with diamond cut. Note: As an anodised colour, minor tonal variation caused by metal grain structure is inherent to production.
- Brushed Clear (BUA): Disc — brushed × tinted clear coat; Rim — clear anodised with diamond cut. As a candy-type clear, slight colour variation between production lots is normal.
- Brushed Black × Clear Rim (BRB-F): Disc — brushed × black anodised; Rim — clear anodised with diamond cut. Combines the dark disc of BRB with the bright rim of BUA for a two-tone effect.
Vehicle Fitment Guide
Confirmed T521 fitments from 3D Design Japan (contact for your specific variant):
- BMW G80 M3: 21" BRB-F — F:10.0J×21 ET+13 / R:11.0J×21 ET+20 ⚠️ Note: inner fender may contact at low ride height or with certain tyres — consult dealer
- BMW G16 X6 (F16): 21" Silver — F:9.0J×21 ET+24 / R:10.0J×21 ET+32
- BMW G16 X6 (F16): 21" Black — F:9.0J×21 ET+24 / R:10.0J×21 ET+32
- BMW G06 X6: 22" BUA — F:10.0J×22 ET+28 / R:11.5J×22 ET+38
- BMW G06 X6: 22" BRB — F:10.0J×22 ET+28 / R:11.5J×22 ET+38
- BMW G11/G12 7 Series: 21" BRB — F:9.0J×21 ET+20 / R:10.0J×21 ET+30
- BMW G11/G12 7 Series: 21" BUA — F:9.0J×21 ET+20 / R:10.0J×21 ET+30
- BMW G05 X5: 22" BUA — F:10.0J×22 ET+28 / R:11.5J×22 ET+38
- BMW G05 X5: 22" BRB — F:10.0J×22 ET+28 / R:11.5J×22 ET+38
- BMW G05 X5: 22" BRB-F — F:10.0J×22 ET+28 / R:11.5J×22 ET+38
⚠️ X7 (G07) 7-seater vehicles are not supported — different load conditions prevent T521 fitment. Contact us for alternatives.
Other Bolt Patterns Available
The T521 is produced in 5×112 and 5×120 configurations depending on the target platform. Confirm your BMW's bolt circle at time of order. Through the custom program, additional PCDs can be accommodated for non-standard applications — contact [email protected].
2-Piece Construction Advantage
The T521's separate forged disc and flow-formed rim allow each component to be engineered independently. The disc is forged from high-strength 6061-T6 aluminium billet and CNC-machined to final contour; the rim is flow-formed to precise wall thickness. Assembled with stainless fasteners, the 2-piece architecture enables the T521's extraordinary offset range — from deeply concave setups to flush fitments — impossible to achieve with a fixed monoblock forging. For BMW 7 Series and X5/X6 owners who demand both stance and structural integrity, the T521 is the benchmark choice.
Configuration Comparison
| Model | Construction | Sizes | Best For |
|---|---|---|---|
| T521 | 2-Piece Forged | 21", 22" | BMW 7/8 Series, G05 X5, G06 X6, G11 — large luxury |
| Type 4 (T4F) | 2-Piece Forged | 22" | BMW F15 X5 / F16 X6 / X5M / X6M — JWL 815 kg |
| Type 3 (T3F) | 1-Piece Monoblock | 19", 20" | BMW 3/4/5 Series, M Cars — ultralight |
| Brombacher | 3-Piece Forged | 19", 20" | Classic BMW heritage aesthetic |
3D Design Wheel Collection at Hodoor World
- 3D Design T521 2-Piece Forged Wheels — 21"–22", BMW 7/8 Series and G-generation X5/X6
- 3D Design Type 4 2-Piece Forged Wheels — 22", BMW X5/X6/X5M/X6M (F15/F16); JWL 815 kg
- 3D Design Type 3 Forged Wheels — 19"–20", ultralight 1-piece monoblock for M cars
- 3D Design Brombacher Wheels — 19"–20", classic 3-piece forged BMW heritage wheel
- 3D Design Anniversary AV1 Forged Wheels — 20", 10th anniversary 1-piece forged, F82 M4 / F80 M3
Custom Forged Program
All T521 wheels are manufactured to order in Japan through 3D Design's custom forged program. Width, offset, diameter (18"–24"), and PCD can be configured to individual specification. The 21" full-reverse and 22" step-rim options are standard; custom rim depths are available for extreme concave or flush applications. Lead time is typically 8–14 weeks from order confirmation. Contact [email protected] to begin your build.
How to Order
- Identify your BMW chassis code (G05, G06, G07, G11, G16, G80 etc.) and current tyre spec.
- Select diameter (21" or 22") and preferred finish (BRB, BUA, or BRB-F).
- Contact [email protected] with chassis, tyre size, and desired offset — we confirm fitment and produce a quote.
- Order is placed; 3D Design Japan initiates production (8–14 weeks lead time).
- Wheels ship directly from Japan — worldwide delivery available.
Frequently Asked Questions
What is the 3D Design T521?
The T521 is a Japanese-made 2-piece forged wheel (forged disc + flow-formed rim) designed for BMW's large-diameter 7 Series, 8 Series, G-generation X5 and X6 platforms, available in 21" and 22" with three Brushed finish options.
What finish options are available?
Three: Brushed Black (BRB — dark disc, diamond-cut black rim), Brushed Clear (BUA — tinted clear disc, diamond-cut clear rim), and Brushed Black × Clear Rim (BRB-F — dark disc with bright clear rim).
Can I order a custom offset?
Yes. 3D Design's custom program allows offsets in 1 mm steps within the published permissible range for each width. Specify your exact requirement when ordering.
Does the T521 fit the X7 (G07)?
No. The X7 7-seater variant has different load conditions that are incompatible with T521. Contact us if you own an X7 and we can recommend an appropriate alternative.
Are wheel bolts included?
No. BMW-spec wheel bolts must be sourced separately. One 3D Design centre emblem and one air valve are included per wheel.
Discover Hodoor World
- Worldwide Shipping: 3D Design T521 ships globally from Japan. We handle all export documentation, customs clearance support, and logistics.
- BMW Fitment Experts: Email [email protected] for fitment verification — G80 M3 inner-fender clearance, G07 alternatives, and staggered setups confirmed by our team.
- Trusted Expertise: Verified Trustpilot reviews. Genuine 3D Design products with manufacturer documentation available on request.
- Custom Design & Build: Need a unique specification? Our team works directly with 3D Design Japan to produce bespoke configurations.
T521 Wheel Care
- Brushed finishes: Use a pH-neutral wheel cleaner and a soft microfibre mitt. Never use wire brushes or abrasive pads on brushed surfaces.
- Anodised surfaces (BRB): Avoid acid-based cleaners — they attack the anodised layer. Apply a dedicated anodised-metal protective sealant every 3–6 months.
- Diamond-cut rim: Sealed at production. Apply ceramic coating or quality wax to the cut surface to prevent corrosion of exposed aluminium.
- 2-piece hardware: Inspect assembly bolts annually. Retorque to 3D Design specification if any looseness is detected.
- Winter roads: Rinse after every drive on salted roads. Salt accelerates galvanic corrosion at the disc-rim interface — keep this area clean and dry.
3D Design T521 — International Delivery
All T521 orders originate from 3D Design's production facility in Japan. Hodoor World manages logistics from point of manufacture to your door. Delivery to Europe takes 3–5 weeks from production completion; North America and GCC 4–6 weeks; Southeast Asia 3–4 weeks.
- Production lead time: 8–14 weeks for custom-configured orders
- Customs: Full export documentation from Japan; import duties at destination are the buyer's responsibility
- Insurance: Full declared-value insurance on all shipments
- Contact: [email protected]
