D6639 27.0/10.5R17 X5 Drag Tire

The D6639 27.0/10.5R17 X5 Drag Tire by Mickey Thompson is purpose-built for serious drag racing and strip competition where launch grip and sustained acceleration performance demand uncompromising tire construction. This is the tire choice for racers who understand that off-the-line bite directly translates to ET improvements and consistent quarter-mile results. Whether you're running a dedicated drag car, competition truck, or weekend bracket racer, the X5 compound and carcass design address the unique demands of straight-line acceleration where sidewall flex, traction, and heat management separate winning runs from mediocre ones.

Mickey Thompson's X5 drag tire formula features a specialized compound engineered for maximum traction off the starting line while maintaining stability through the mid-range and top-end of the strip. The 27.0-inch overall diameter and 10.5-inch width provide optimal contact patch geometry for power transfer without excessive rolling resistance, a critical balance in drag racing where every pound-foot of engine output must reach the asphalt. The reinforced sidewall construction resists the extreme lateral and longitudinal forces generated during hard launches, preventing unwanted deflection that would rob you of consistency and repeatability. This tire's construction prioritizes compound stickiness and structural rigidity over longevity—it's designed to deliver peak performance across a focused competition window rather than serve as an all-purpose tire.

The D6639 X5 is ideal for dedicated drag racing platforms—bracket cars, street-legal strip runners, and competition trucks where traction is non-negotiable. Proper mounting on 17-inch drag-specific wheels and correct inflation tuning are essential for maximizing grip; most drag racers experiment with pressures between 6–15 PSI depending on track temperature, vehicle weight, and horsepower level. Installation requires standard tire mounting equipment, and many racers rotate between sets to extend compound life and manage heat buildup across multiple passes. This tire delivers measurable improvements in 60-foot times and consistency, making it the standard choice for competitors who demand repeatable performance when it matters most.