Ace Skateboard Trucks - AF1 Polished - Size 44 - 8.25 - Set of 2Axle Kingpin Style Hollow Kingpin Quantity Set of 2 Trucks Baseplate Style Standard AXLE KINGPIN STYLE Hollow Kingpin Lightening the load, hollow kingpins reduce weight for lighter feeling trucks, while still maintaining strength in this critical area. NON COMPATIBLE RISERS Risers from the following brands are not compatible with the baseplates of these trucks. Diamond, Girl, Independent, Loaded, Paris SIZING REFERENCE Note Every skate truck brand