Brixton Forged TR Circuit+ Series TR21 Three-Piece Wheel

The Brixton Forged TR Circuit+ Series is built around a classic 3-piece custom wheel construction using TUV-rated, forged 6061-T6 aerospace-grade aluminum, with a manufacturing process held to demanding production standards. The design direction pulls from classic custom wheel heritage while staying current enough to work across a wide range of sports cars, from vintage platforms to modern builds. Craftsmanship and fitment precision are the core of what the Circuit+ delivers, and the wheel’s proportions reflect that focus throughout.

Hardware Options

• Brixton Forged offers extensive customization across its 2-piece and 3-piece wheel lineup, with hardware configurations available in fully hidden, fully exposed, or 50/50 layouts.
  • 6-PT Torx Stainless Hardware:
    • Anodized black (standard)
    • Polished (standard)
    • Gloss black
    • Gloss blue
    • Gloss green
    • Gloss grey
    • Gloss orange
    • Gloss purple
    • Gloss red
    • Gloss white
    • Gloss yellow
  • 6-PT Torx Titanium:
    • PVD black
    • Raw

Center-Cap Options

• Brixton Forged offers original center-cap options for standard 5-lug and 6-lug PCD applications across a wide range of common vehicle fitments.
  • Satin piano black
  • Classic gloss twill carbon fiber
  • Gloss forged carbon fiber
• For center-lock applications, Brixton Forged also offers vehicle-specific center-lock options, along with OEM Porsche and Lamborghini badge replacements for compatible setups.
  • Classic gloss twill carbon fiber
  • Gloss forged carbon fiber

Text & Groove Fill Options

• Brixton Forged’s Text and Groove Fill program uses epoxy color to accent specific design details, adding a more personalized element to the finished wheel. Placement options vary by design and can cover the logo, wheel name, series name, and design-specific grooves or spokes, with up to 3 fill instances per wheel. Nine standard colors are available, with custom color requests accepted as well.

Finishing Options

• Brixton Forged’s finish catalog covers more than 6,000 powder coat and Cerakote options, spanning solid colors, textured finishes, and premium transparent clear coats across the forged wheel lineup.
  • Standard Colors: Solid opaques, textures, metallics
    • Solid finish options from Brixton Forged are built on premium powder coats chosen annually with input from international partners, with gloss, matte, satin, and textured varieties available across a wide color selection.
      • Firecracker black
      • Forged bronze
      • Hastings blue
      • Kingsport grey
      • Lunar white
      • ODB
      • Sterling silver
      • Trofeo gold
  • Premium Colors: Transparent clear hues over brushed or polished aluminum
    • Brixton Forged’s premium finishes are built on a ceramic-polished aluminum base, with multiple layers of transparent high-grade powder coat applied to develop depth and clarity in the surface. The brushed options start with 120-grit hand-brushed aluminum and are finished with transparent powder coat that locks in the grain texture and preserves the hand-finished character. The available options across both categories are Polished Mirror Gloss, Polished Anodized Satin, Brushed Gloss, and Brushed Satin.
      • Carbon bronze
      • Carbon red
      • Classic bronze
      • Double tint
      • Olympic bronze
      • Oxford gold
      • Raw aluminum
      • Single tint
      • Smoke black
      • Triple tint

Specifications

• Construction: 3-piece classic profile
• Features: Weight reduction back-pad pocketing & water channeling
• Diameters:
  • 18″
  • 19″
  • 20″
  • 21″
  • 22″
  • 23″
  • 24″
• Widths:
  • 8″
  • 8.5″
  • 9″
  • 9.5″
  • 10″
  • 10.5″
  • 11″
  • 11.5″
  • 12″
  • 12.5″
  • 13″
  • 13.5″
  • 14″
  • 14.5″
  • 15″
  • 15.5″
  • 16″
• Offsets: Custom
• Hardware:
  • Fully exposed
  • Exposed 50/50
  • Hidden

Other TR21 Configurations

• AERO1 SERIES 1-piece vented monoblock
• AERO3 SERIES 3-piece vented modular
• AEROTECH SERIES 5-piece vented modular
• TR SERIES 1-piece lightweight monoblock

Notes

• All Brixton Forged wheels are individually crafted from the finest materials to your individual spec. There are no “off the shelf” Brixton wheels and as such, a lead time of a few weeks is to be expected once your spec has been finalized. The Bulletproof Team will serve as your concierge throughout the entire process to ensure you get the perfect wheel for your application.
• Standard PCD center caps are not available in any PCD lower than 100mm, OEM center cap adapters may be required
• If the Text & Groove Fill option is selected, a Bulletproof Automotive Wheel Specialist will reach out to you to go over options. Please note, only up to 3 fill instances are available per wheel; all color options are available.
• Standard, premium, and custom color finishes available for hardware

About Brixton Forged

Brixton Forged wheels are entirely conceived and hand-crafted in their manufacturing facility based in Los Angeles, California. With its origins in Los Angeles, their product development team brings decades of experience in creating the highest quality forged wheels in the industry. The team consists of professional Mechanical Engineers and Machinists who spare no effort in the product development process, ensuring no corners are cut. They have a thorough understanding of Vehicle Dynamics, OEM load ratings, and Material Science, equipping them with the necessary skills to engineer wheels that are not only visually stunning but also safe and designed to perform. Brixton Forged has its own team of Mechanical Engineers and technical staff who individually engineer and conduct FEA testing on every wheel set. Their product development team’s wealth of experience enables them to consistently deliver wheels of the highest quality in the industry. Their team of professional Mechanical Engineers ensures no compromises are made throughout the product development process. With a deep understanding of Vehicle Dynamics, OEM load ratings, and Material Science, their team possesses the necessary skills to engineer wheels that are both visually impressive and safe, designed to deliver exceptional performance.