The TR-201 truck is constructed out of an aluminum alloy. Our exclusive patented truck design performs like no other, virtually eliminating high speed wobble while delivering an unprecedented six foot turning radius. It features an alloy steel cast-in-place axle and an internal aircraft aluminum cam to eliminate "wheel bite." The bushings are interchangeable to customize your ride! The axle width is 250mm which gives a superb turning radius! We designed this truck for cruising. Features a LIFETIME GUARANTEE! (Sold as a pair)