Once again, ACE is proud to introduce the most technical and performance driventruck to date with a revolutionary inverted kingpin system. Engineered for maximum durability, unrivaled performance, precision tuning and guaranteed lowest grind clearance of any kingpin on the market. At the heart of our design is a patent pending technology providing a more stable anchor point for the kingpin. Our innovative hollowed axle system and domed-out baseplate make it the strongest and lightest truck we’ve ever created. This cutting edge design sets a new standard for the future of skateboard trucks. Features: Each truck includes bonus adaptor tool, 2 per set!. Place this magnetic adaptor in ANY skate tool, and you have an Inverted tool. The magnetic adaptor wont fall out minimzing risk of loss. 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 | 94a hardness Bottom Bushing: Bottom 14mm tall | 86a hardness Machine-faced hanger ends for precise bearing contact. Each truck includes bonus blackAxle Re-Theader Die Sizing: 22 – 7.75 Axle33 – 8 Axle44 – 8.25 Axle55 – 8.5 Axle