Madrid Longboard Trucks X Caliber 180. These versatile trucks will mount on any drop though and are strong and sleek! Check out the newest truck for downhill bombing from Madrid! Sold in a pair. 50 degree til for quicker turns. Features - X-Caliber Model XTR180 's beefy 180mm hangar sits on a 50º baseplate, secured by a custom removable kingpin nut that extends into the baseplate to eliminate kingpin slop and provide extra thread engagement.