Vintage 1970′s X-Caliber Skateboard With X-Caliber Trucks Very Rare. Skateboard is beat up front rim, sides, are worn away. The top of the skateboard has faded but it reads. X-Caliber on top. (Hard to make out). The trucks also have X-Caliber on them as well. The wheels don’t have any markings on them. The Trucks hardware seem Loose.. Like they bounce up & down This is definitely an project(refurbished) or a wall hanger. Skateboard measures approx 24″ Long 6″ wide.