GA1R20 – Forgeline GA1R one piece monoblock wheel set

Part Number: CBVEN-7013 Category: Tags: , , , , , ,


Note: Images are for representational purposes only.  Actual product may vary.

Reducing unsprung weight and improving your BMW’s grip on the road is what the lightweight forged performance wheel set is all about. The GA1R is available with fully customizable finish options. (Transparent Smoke, Bronze, Gunmetal, Hyper Silver, Matte Gold, Matte Transparent Red, Silver and Transparent Red finish options shown, see below for complete list.)


Model Front wheel Front Tire Rear wheel Rear Tire
F9X M5-M8 20×10 295x30x20 20×10.5 305x30x20
F1XM5-M6 20×9.5 275x30x20 20×10.5 305x30x20
F8X M4 GTS 20×10 285x30x20 20×10.5 305x30x20
F8X M4 M3 20×9.5 275x30x20 20×10.5 305x30x20
E9X M3 20×9.5 275x30x20 20×10 305x30x20
F87 M2 Comp 20×9.5 275x30x20 20×10.5 305x30x20
  • One-Piece Monoblock Construction
  • Built to optimized offsets and sizes to accommodate substantially larger tires without any rubbing or modification of the wheel well
  • Wheels accommodate substantially larger tires for maximum grip and reduction of understeer by bringing the front and rear tire sizes closer together.
  • Motorsport-inspired design for the ultimate in street performance
  • CNC machined from a solid piece of aluminum
  • Concave Profile
  • Deep Cap (DC) and Extra Deep Cap (EDC) Options Available for Select Applications
  • I-Beamed Spoke Technology
  • Extreme Stiffness
  • Extreme Fatigue Strength
  • 2100 lb. Street-Tire Load Rating (per wheel)
  • Lightweight
  • Generous Brake Clearance
  • Aerospace-grade 6061-T6 forged aluminum for high strength-to-weight ratio
  • Engineered to minimize unsprung mass and rotational inertia for maximum performance and handling
  • Includes Standard Aluminum Center Cap
  • Customizable Finish Options
  • Legendary Forgeline Quality

Additional Information

The Forgeline GA1R is a fully-forged one-piece monoblock wheel that utilizes much of the technology and design of the very successful GA3R racing wheel, including Forgeline’s new “I-beamed” spoke technology. The concave design of the Forgeline GA1R one piece monoblock wheel not only looks great, but allows plenty of room for caliper clearance and extreme brake fitment. The one-piece monoblock forging and I-beamed spoke design yield a wheel that is extremely stiff with fatigue strength equal to the proven GA3R. Despite the strength and stiffness, for most applications and sizes, it also delivers a high-performance weight reduction – making it perfect for motorsports and racing applications or the discerning street enthusiast who demands the ultimate in performance capability!

The GA1R is designed for racing. It is engineered with a 2100 lb. street-tire load rating (per wheel) to ensure strength and integrity, even when subjected to the massive loads encountered on the stickiest race tires.
The Forgeline GA1R one piece monoblock wheel is produced using the traditional forging method from 6061-T6 aluminum. It is currently available in 18, 19, 20, and 21-inch sizes with a range of widths and offsets. (Please Note: Depending on size, the GA1R may be available in deep, medium, or shallow concave profiles.)

The Forgeline GA1R one piece monoblock wheel is also available for limited applications in Deep Cap (DC) and Extra Deep Cap (EDC) profiles. These Deep Cap profiles employ unique in-house lathe turnings that allow Forgeline to position the center cap deep within the center of the wheel and create an exaggerated extra-aggressive concave look. This option is an excellent choice for select vehicles including the BMW M3 and certain Porsche models (rear only).
And just like any Forgeline wheel, it is available with fully customizable finish options. Price for the Forgeline GA1R one piece monoblock wheel set starts at $8000.00 depending on size and finish. To purchase a wheel set with a finish option other than shown above, please contact us.

Standard Finish:

Standard Silver Center, Hyper Silver Powder Coat, Gunmetal Center, Satin Gunmetal Center, Titanium Powder Coat, Graphite Powder Coat, Matte Graphite Powder Coat, Gloss Black, Satin Black, Matte Black, Gloss Bronze, Satin Bronze, Matte Bronze, Light Bronze Anodized Powder Coat, Medium Bronze Anodized Powder Coat, Race Gold Powder Coat, Matte Gold Powder Coat, Pearl Gray Powder Coat

Optional Finish:

Transparent Smoke, Transparent Copper, Transparent Red, Transparent Blue, Tinted Gold Transparent, Matte Transparent, Brushed Center, Fully Polished, Polished & Brushed, Diamond Cut Finish, HTM (High Tech Machined) Finish, Machined & Brushed, Custom Center Color, Black Chrome PVD


Cancer and Reproductive Harm -


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  • 2020 BMW M8 Base Convertible
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  • 2020-2021 BMW M8 Base Gran Coupe
  • 2020-2021 BMW M8 Competition Gran Coupe
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