The Ace Classics are tried and true by pro skaters, with the basic design and features pioneering in skateboarding. • Shaft width: 8” (203 mm) • Width: 5.3” (137 mm) • Height: 2.1" (53 mm) • For shapes: "7.75 to 8.125" • Manufactured with high quality alloy 7071 using our own casting method; • 3056 alloy steel shafts, oversized to eliminate bearing wobble; • Durable hand-poured 96a urethane pivot bushings for improved response; • Refined suspension for a cleaner ride; • Upper bushing: 12 mm high | 91st hardness; • Bottom Bushing: Bottom 14mm high | 86a hardness; • Machine face hanger ends for precise bearing contact.   Note: Price is for a pair, not sold separately.