Durometer Yellow: Dual 78a Outer-90a Inner
Durometer Blue: Dual 80a Outer-85a Inner
Edge: Square Lip
Contact Patch: 50mm
Description/Style: Sharp flexible edges for grip. Quick turning and responsive. Thicker lips when compared to the 69mm for better roll speed and acceleration. When broken in, they have a controlled buttery slide. Racers favorite on technical courses.
70mm Racing Nineballs (dual duro)