3SDM

3SDM 1.55

In stock
Construction
Monoblock Forged
Diameters
15″ - 20″ + custom
Widths
5″ - 14.5″ + custom
Offset range
By request

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.

  • Worldwide delivery in 5-7 days
  • Certification support
  • Free fitment check

Finishes

Full price, fitment check and delivery estimate within 24h.


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03 /Specifications

Technical overview

This wheel is available in multiple fitments. Final size, offset and bolt pattern are to be confirmed with our manager.

01 / General

Construction
Monoblock Forged
Material
Forged aluminum alloy
Manufacturing
CNC-machined aluminium
Origin
United Kingdom
Finish
Standard + custom finishes

02 / Available fitments

Diameters
15″ - 20″ + custom
Widths
5″ - 14.5″ + custom
Bolt patterns (PCD)
Vehicle-specific / by request
Offset (ET)
By request
Centre bore (CB)
Vehicle-specific

03 / Confirmed with quote

Brake clearance
Checked manually
Spacer requirement
Checked manually
Load rating
Confirmed for selected size
Weight
Confirmed for selected size

Need exact specs for your car?

We'll include the confirmed fitment, full spec sheet and available documentation with your quote.

04 /Finish

Pick yourfinish

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

Custom finish available

Looking for a specific colouror brushed gradient?

We can match the finish to your build and include it in your quote.

05 /Full specifications

Description

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

Certification support

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.

3SDM

About 3SDM

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.

See all 3SDM wheels

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