The Krux 1/8″ riser is designed to go in between the truck and board to help give you some more clearance between the wheels and the deck. These are a go to if you are wanting to skate a large wheel and want to avoid constant wheel bite. These are designed to fit the shape of a Krux baseplate but will work with any brand of truck. When using riser pads we recommend a bolt no shorter than 1″.