Ace AF1 Hollow Truck featuring stone hanger and anodized black baseplate The all-new ACE AF1 HOLLOWS features hollow axle and kingpin, making for the lightest AF1 to date. The AF1 is carefully manufactured using our proprietary casting process. Years in development, the ACE AF1 has a 70% increase in the aluminums structural integrity, making it the strongest cast truck on the market. 8.6% Lighter than standard AF1 Hanger width: 5.6 (143mm) Truck height: 2.1 (53mm) Manufactured with high-quality AA 356.2 alloy using our own proprietary casting method True T6 heat-treated baseplates and hangers SAE 4140 steel alloy axles, oversized to eliminate bearing wobble. Patent pending rethreading axle nuts – no more damaged axle ends! Durable Hand-poured 96a urethane pivot bushings for better response. Refined suspension for a cleaner turn. Top Bushing: 12mm tall | 91a hardness Bottom Bushing: Bottom 14mm tall | 86a hardness Machine-faced hanger ends for precise bearing contact. Each truck includes bonus goldAxle Re-Theader Die, the gold and red axle re-threader dies are the same item, the gold differentiates the truck in the showcase as a Hollow whereas red is for standard AF1 with solid hanger and kingpin. Faced Hangers Machined to perfection so the bearings sit flush Re-threading Axle Nuts No more stripped axles *Patent pending technology Laser Etched Sizing Easy to match to your board size