3SDM 1.55 forged monoblock - 1PC balanced-face design, UK-manufactured. 15"-20" diameters, 5"-14.5" widths. Flat, Concave, or Extra Concave profiles. Custom finishes to order.
Finishes
Full price, fitment check and delivery estimate within 24h.
03 /Specifications
This wheel is available in multiple fitments. Final size, offset and bolt pattern are to be confirmed with our manager.
Need exact specs for your car?
We'll include the confirmed fitment, full spec sheet and available documentation with your quote.

04 /Finish
Each finish is hand-applied and quality-checked before shipping. Custom finishes available on request add 2 weeks to lead time.
Gunmetal Grey
Satin Black
05 /Full specifications
3SDM 1.55 - Forged Monoblock Street Wheel with Balanced Face Profile
Versatile 1PC Forged Design from 3SDM's British Manufacturing Programme
3SDM 1.55 is a forged monoblock wheel from 3SDM's 1PC Forged range, built to order at their UK facility. The 1.55 offers a balanced aesthetic between flat and concave profiles, making it adaptable for a broad set of street and modified builds where visual proportions are equally important as performance credentials.
3SDM 1.55 Design & Engineering: Balanced Face Profile Forged Monoblock
Machined from a single forged billet, the 1.55 offers face geometry that works across multiple applications from flush fitment to stepped deep-dish builds. The wheel is CNC-machined throughout with the 3SDM logo featured as standard, and optional back pad pocketing provides weight reduction with authenticity markings. FEA analysis is applied with 3SDM's proprietary loading scenarios to ensure consistent structural performance across all profile configurations.
3SDM 1.55 Technical Specifications
Construction: Forged monoblock. Material: Forged aluminum alloy. Available in 15" to 20" diameters and 5" to 14.5" widths. Profile: Flat, Concave, or Extra Concave. Custom sizes, PCD, centre bore, and offset manufactured to order. Certifiable to JWL VIA, ISO, TUV, and other international standards.
3SDM 1.55 Available Finishes
The 1.55 is available in any of 3SDM's custom finish options. Popular choices include Gunmetal Grey, Satin Black, Brushed Clear, Candy Red, and Imola Bronze. All finishes are applied to order and available in both Satin and Gloss variants across the powder coat range, plus anodized options. Contact 3SDM for the complete finish catalogue and custom colour matching.
3SDM 1.55 Vehicle Fitment: Porsche, Honda, Toyota & More
The 1.55 is well suited to Japanese and European sports cars including Porsche 911 and Boxster, Honda Civic Type R, Toyota GR86, and Subaru WRX. The wide diameter and width range means it can be configured for lightweight sports coupes through to heavier GT platforms. Contact us with your vehicle make, model, and year for a confirmed fitment and specification.
Any Car, Any Build
The 1.55 can be ordered for any vehicle and any specification - not just the models listed above. Whether the build calls for a lightweight flush fitment or an aggressive stepped lip, 3SDM manufactures the 1.55 in any combination of diameter, width, offset, PCD, centre bore, and finish. Share your vehicle details and we will confirm the build specification and return a quote.
06 /Certification
Documents differ by model and country. We check them for your exact wheel before you pay — and tell you upfront what's available.
01
Clear about what you get
Every quote states exactly what you're getting: brand, model, finish and documents.
02
Documents checked before payment
We confirm which certificates (TÜV, JWL, VIA) exist for your model and send them with the quote.
03
Fitment verified
Offset, PCD and brake clearance checked for your exact car.
04
Registration in your country
Tell us where the car is registered — we'll check what's needed and what we can provide.

Need documentation for your wheel?

3SDM is a British wheel manufacturer that bridges the gap between street style and motorsport function — a position that very few alloy wheel brands occupy with credibility in both directions. Operating out of the UK, 3SDM has built a global following through a consistent design language: multi-spoke profiles with deep concave architecture, available in both cast and forged construction, that look equally at home on a modified hatchback and a racing circuit.
Hodoor sources 3SDM wheels through verified supplier channels and confirms fitment, finish and delivery before quoting.

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