4 - ABEC 11 ZIG ZAGS BLUE 66MM 81A. These are great wheels for your vintage, slalom, or longboard set-up. The faster larger hard-carving, pumping and slalom specific wheel. Excellent acceleration when pumpin and awesome roll speed. This urethane even sounds fast. Rear-Set Bearing Seat. 51.5mm Contact Patch. Set of 4 New in Shrink. BRAND - Abec 11. MODEL - Zig Zag. COLOR - Blue. SIZE - 66mm. DUROMETER - 81a.