Weld Racing 77MB8070B37A RT-S S77 Street & Strip 18x7 Forged Aluminum Wheel Matte Black

The Weld Racing RT-S S77 (PN: 77MB8070B37A) is an 18x7.0 forged aluminum wheel finished in matte black anodize, built on Weld's proven Street & Strip platform. Featuring a classic multi-spoke tuning fork design adapted for modern muscle, this wheel brings race-bred engineering to street-driven performance vehicles.

3-Piece Forged Construction: Built with cold-forged rim shells and a forged 6061 aluminum center, the S77 delivers exceptional strength while minimizing rotational mass for improved acceleration and handling response.

Key Features:

• Size: 18 in. diameter x 7.0 in. width
• Finish: Matte black anodized center with black shell
• Construction: 3-piece modular, forged 6061 aluminum center with cold-forged rim shells
• Pad Height: Medium pad — designed to clear high-performance factory brake systems and most aftermarket disc brake setups
• Lug Nut Seat Style: Conical seat, 60-degree taper
• Backspacing: 3.70 in.
• Load Rating: 1,580 lbs.
• TPMS Compatible: Yes (valve stem mount)
• Does NOT accept 5/8 in. wheel studs
• Matching push-thru center cap included
• Valve stem included
• Sold individually

The medium pad design on the S77 clears high-performance factory brake systems — including the large disc setups introduced on performance cars from the late 1980s onward — as well as a wide range of popular aftermarket brake systems. Three mounting pad heights are available across the S77 lineup, ensuring fitment compatibility with drum brakes, stock performance calipers, and large multi-piston aftermarket systems alike.

Engineered and manufactured in Kansas City, USA, Weld Racing has been the premier aluminum performance wheel manufacturer in motorsports for nearly six decades, applying Finite Element Analysis (FEA) and Rotational Moment of Inertia (RMOI) engineering to every design.