The classic original Thunder truck. Made popular by the highest quality materials and geometry, this is a well made truck that turns great thanks to USA made bushings. Quick Response, Lightweight, and Strong. Thunder size 161 trucks have an 9.125" axle which is perfect for boards from 8.9" and up. Includes everything you need to mount these skateboard trucks to a skateboard deck. Includes 2 Thunder Trucks, Includes a set of 2, 1/8" polyurethane riser pads, and 1" Mounting Hardware from Dime Bag Hardware.