Tire 10.5/28.5-15 (F9) Phoenix Drag

The Tire 10.5/28.5-15 (F9) Phoenix Drag from Phoenix Race Tires is a purpose-built drag racing slick engineered for serious bracket racers, street outlaws, and dedicated drag strip competitors. This is not a street tire—it's a competition-grade product designed exclusively for controlled acceleration environments where maximum grip and predictable launch characteristics matter most. Built to the exacting standards of drivers who depend on repeatable performance in 60-foot zones and ET consistency, this tire represents the intersection of bias-ply construction and drag-focused compound chemistry.

The 10.5/28.5-15 specifications denote a 10.5-inch width paired with a 28.5-inch overall diameter on a 15-inch rim—dimensions that balance sidewall flex, rotational mass, and launch platform for mid-range drag vehicles. The F9 compound is a proven soft racing rubber formulation that prioritizes cold bite and consistent traction over heat resistance, making it ideal for 1/8-mile or 1/4-mile applications where tire temperatures remain moderate. Bias-ply construction delivers the sidewall compliance necessary for weight transfer management during acceleration, allowing the tire to roll and flex in ways that radial designs cannot replicate. The white-letter sidewall adds authentic race aesthetic while the slick tread pattern—essentially a smooth surface with minimal grooves—maximizes the contact patch under launch load.

This tire suits bracket racers, footbrake competitors, and manual-launch drag racers running vehicles in the 8-second to 12-second ET range, particularly those with solid rear axles or mild independents. Weighing 26.3 lbs per tire, the relatively lightweight construction reduces unsprung mass and rotational inertia—factors that translate to quicker acceleration off the line. Installation requires a 15-inch wheel and proper tire pressure tuning per your vehicle's launch RPM and weight transfer setup; most racers run 18–28 psi cold depending on vehicle dynamics and track temperature. Confirm fitment against your current rim width and suspension geometry before purchase. For die-hard drag enthusiasts seeking repeatable 60-foot times and predictable ET consistency, the Phoenix Drag tire delivers track-tested reliability.