NOTE: Sold only as a set of two (2) trucks. Ace 55 our Classic 2.125" (52mm) tall truck. When things get burly Ace Pilots know, 55's are the king of the session. Plenty of delicious hanger surface that lives to grind, coupled with our unbeatable geometry, there really can be nothing like it. Machine polished to a low lustre. Our polished finish trucks are the go-to choice when performance at no sacrifice is your goal. Specs: Axle width: 9.0" Hanger width: 6.37" Truck height: 2.125 (52mm) Classic Fits boards: 8.5-9.12"