Forgeline One-Piece Monoblock Series GS1 Custom-Order Wheels GS11812

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Part Number: FGM-GS11812

$1,935.00

Wheels, One Piece Monoblock Series, 18x12.0
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Forgeline One-Piece Monoblock Series GS1 Custom-Order Wheels GS11812

Forgeline One-Piece Monoblock Series GS1 Custom-Order Wheels GS11812

FGM-GS11812

Not Yet Reviewed

Part Number: FGM-GS11812

Estimated Ship Date: Nov 2, 2026

$1,935.00

Estimated Ship Date: Nov 2, 2026 Would you rather pick it up?

Overview

Brand:
Manufacturer's Part Number:
GS11812
Part Type:
Product Line:
Summit Racing Part Number:
FGM-GS11812
Wheel Diameter:
18 in.
Wheel Width (in.):
12.00
Wheel Material:
Forged aluminum
Wheel Construction:
1-piece
Center Cap Included:
Yes
Quantity:
Sold individually.

Forgeline One-Piece Monoblock Series GS1 Custom-Order Wheels

Some of the world's finest custom lightweight forged aluminum wheels are right here—and we get them from Forgeline Motorsports!

Forgeline's one-piece Monoblock Series GS1 custom-order wheels are machined entirely from a single 6061-T6 aluminum forging to create a wheel that is extremely stiff, exceptionally strong, and very lightweight—all rolled into one attractive package!

Based on Forgeline's extremely successful GS1R wheels, which was originally designed for professional racing teams competing in the IMSA Continental Tire Sportscar Challenge Grand Sport (GS) class), the Forgeline GS1 combines the latest in advanced wheel technology, including one-piece forged monoblock construction, motorsport engineered design, and I-beamed spokes. The GS1 is engineered to withstand the rigors of top-level endurance racing with a 2,100 lb. street tire load rating and exceptional deflection stiffness.

Though made from the same forgings and similar design as Forgeline's race-winning GS1R (including the distinctive smooth chamfered outer edge), the GS1 forgoes the GS1R's aggressive open-lug center area for a more traditional center design that accommodates Forgeline's standard press-in aluminum center cap.

Forgeline can custom build the GS1 wheel in 17-inch, 18-inch, 19-inch, 20-inch, 21-inch, and 22-inch diameters with a range of widths and offsets. Depending on size, the GS1 may be available in deep, medium, or shallow concave profiles. And just like any Forgeline wheel, the GS1 is available with fully customizable finish options.

Forgeline is so serious about delivering satisfaction that all of their wheels are totally made-to-order. Each wheel's backspacing, diameter, fit, finish, and appearance are under your control. Competition drives excellence at Forgeline Motorsports; let them forge a set of wheels for you!

Customer must complete the Instruction sheet attachment for all wheel and related component information before a final price and availability can be provided. Finished price and availability will depend on the final configuration.

Non-Returnable; each custom wheel is made-to-order. As mentioned, the price will vary depending on size selected and the chosen options. Achieve the look and fit you're after with the Forgeline custom wheel for your ride.

All custom-order wheels are Special Order and Non-Returnable.

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Instructions & Calculators

Instruction Sheets for Part Number FGM-GS11812

Charts & Guides for Part Number FGM-GS11812

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