Weld Racing 71MB-509B45A RT-S S71 Forged Aluminum Black Wheel 15x9.33 5x4.75 4.50 BS

The Weld Racing RT-S S71 is a 3-piece forged aluminum drag racing wheel built for high-performance street and strip use. Part number 71MB-509B45A measures 15 in. x 9.33 in. with a 5x4.75 in. bolt circle and 4.50 in. backspace, finished in a black anodized center with cold forged rim shells.

Key Features:

• 3-piece forged construction — forged billet center and cold forged rim shells welded together for a superior strength-to-weight ratio
• Black anodized center with classic Weld Racing 5-spoke star design
• 15 in. diameter × 9.33 in. width with 4.50 in. backspace
• 5×4.75 in. (5×120.65mm) bolt circle
• 3 mounting pad heights available — clears drum brakes, early disc, high-performance factory calipers, and most aftermarket brake systems
• Surpasses SFI 15.1 Drag Race Drive Wheel Specifications for 15-inch diameter wheels
• Meets SAE J2530 Aftermarket Wheel (Street) Standards
• Requires shank-style lug nuts for 15 in. diameter fitment (sold separately)
• Center cap and valve stem included
• Manufactured in Kansas City, MO, USA

The Weld RT-S S71 series is engineered for modern sports cars, classic muscle cars, modified street machines, and pro-touring builds. Each wheel is designed and tested using F.E.A. (Finite Element Analysis) and in-house destructive testing to ensure safety and reliability under demanding race conditions. Sold individually.