Bassett Inertia Advantage 5x5" Wheel Patented Five-spoke design offers 14. 5 square inches more brake cooling area than any other wheel design. Lightest weight (20 lbs. ) and lowest runout (under . 025") of any 15 x 10 wheel on the market. The 5/8" valve stem hole is located behind the center to avoid clipping. Center spokes are ergonomically designed to facilitate handling and lower pit stop times.