Durable, high performance truck for all types of skateboarding. 356 T6 Aluminum hanger and baseplate, solid Chromoly steel axle, grade 8 kingpin, Indy cushions with cylinder bottom. Featuring superior turn and stability, better grind clearance, improved no hang-up yoke for grind tricks, and less wheel bite. They last longer and are stronger on impact than any other truck on the market. 55mm ride height. 6-Hole Baseplate fits both new and old school bolt patterns. 159s measure 8.75" from axle tip-to-tip. Recommended deck size 8.5" - 9.0". Includes 2 Trucks. Comes with a brand new set of 4 Skateboard Wheels. Perfect for Street, or Park Skating. Amp bearings are strong ABEC 5 bearings capable of high speeds and durability. Featuring 8 bearings and 4 bearing spacers and removeable, friction rubber shields that make for easy maintenance and provide a smooth ride all around. Includes one set of Dime Bag 1" mounting hardware.