18x9.0 D5 Drag Wheel 5x 4.5 BC 6.4 BS

The 18x9.0 D5 Drag Wheel 5x4.5 BC from Forgestar Wheels is a purpose-built drag racing wheel engineered for serious bracket racers and street performance enthusiasts seeking maximum rotational efficiency and tire grip off the line. This wheel design targets vehicles running dedicated quarter-mile setups or high-powered street cars where every ounce of rotational mass and launch consistency matters. The 5x4.5 bolt pattern addresses a broad range of domestic and import platforms, making it a versatile choice for drag-focused builds across multiple chassis styles.

At 18 inches in diameter with a 9.0-inch width and 6.4-inch backspace, this wheel provides the narrow profile critical for minimizing unsprung weight while maintaining sufficient sidewall for drag radial tires. The lightweight construction—weighing 26.43 pounds per wheel—directly reduces rotational inertia, allowing quicker acceleration and improved weight transfer during launch. The D5 design combines Forgestar's signature forged-steel construction with a geometry optimized for zero-offset or negative-offset mounting, a key factor in drag racing where chassis dynamics and tire positioning relative to suspension geometry demand precision. The 5x4.5 bolt circle accommodates vehicles from various manufacturers and enables custom offset tuning through spacer selection or hub adaptors.

This wheel excels on dedicated drag cars, NHRA-legal bracket racers, and street vehicles running slick or drag radial configurations. The narrow 9-inch width pairs ideally with 275–315mm drag radials, allowing drivers to dial in launch characteristics and maintain straight-line stability. Installation requires verification of hub bore fit and confirmation that backspace aligns with suspension geometry to prevent rubbing; many installers recommend measuring frame clearance and shock travel before fitment. The Forgestar D5 has become a staple in the grassroots racing community where reliability, light weight, and proven track durability define competitive advantage.