Protective Gear Size Charts

Truck Guide

The skateboard truck axle is the supporting member on which skateboard wheels rotate. The axle of the skateboard truck is a metal rod that extends through the hanger on the truck and is threaded at both ends. The axle is the widest portion of the truck and should correspond with the manufacturer’s width dimension. Because the axle is a separate component from the hanger, it is common for the axle to slip if your board comes down on its side and hits the axle on the end. Some skateboard trucks have non-slip axles that are designed to withstand side impacts without sliding.

The hanger has two important functions on the skateboard truck: The first is to connect the axle to the base plate and the board, and the second is to allow a rocking movement of the truck when the skater’s weight shifts from one side to the other. The hanger has a front portion which fits inside the pivot cup, and a circular loop at the back which is held between two bushings and the king pin. The ability of the hanger to swivel and move under the skater depends on the tightness of the kingpin nut and the durometer of the bushings.

The base plate of a skateboard truck is a cast piece of metal that is attached directly to the skateboard deck (or indirectly if a riser pad is used between the truck and the deck). The base plate has four holes for the skateboard hardware to attach the trucks securely to the deck, The base plate also holds the kingpin at an angle and has a pivot cup to receive the front portion of the hanger.

A hole lined with rubber at the front of the base plate that is used to receive the front of the hanger. The purpose of this joint is to secure the front of the hanger to the base plate and deck of the skateboard while allowing it to rotate freely.

The kingpin is a bolt that is used to attach the base plate to the hanger of a skateboard truck. The tightness of the Kinpin nut on the kingpin affects how tight the hanger is held between the bushings on the truck. Tightening the kingpin nut allows a skater to lessen the degree of left to right rocking on a skateboard.

Bushings are doughnut shaped pieces of rubber that are used to limit the movement between the base plate and the hanger of a skateboard truck. Bushings are available with different durometers to allow more or less turning movement.

The cup washers hold and protect the top and bottom bushings on the truck while compressed between the base plate, hanger and kingpin nut.


Width Selection: The main dimension given for our trucks is the length of the axle. For the majority of our trucks, this is listed in inches, but some truck manufacturers, such as Thunder trucks have them listed in Millimeters. Use the unit converter provided below to easily convert the two units.

In general, you want to select a truck axle width that is as wide as your board or a quarter inch (0.25″) larger or smaller than the width of your deck. For example, if your deck is 7″ wide, you will want to find an axle that is the same length or just shorter or longer based on your preference

Longboards tend to use longer trucks than the board so that the wheels, which are typically larger than shortboard wheels, can get more clearance from the deck when carving. The decision of how wide you want the trucks to be is up to you. If you need ideas for a deck you are making, check out our Complete Longboard decks.

Wheel Guide

As you browse our large selection of Skateboard wheels you will find that they differ in color, size, designs and durometer (hardness). Picking the right wheel will make a difference in the smoothness of your ride, the weight of your board, and how well your wheels grip different surfaces. Some skaters prefer harder durometer wheels which tend to be louder than gummier wheels that are more grippy and tend to be quieter.

A lot of shortboard skaters go with white wheels, but many colors and designs are available. This is an easy way to make your board stand out.

The wheel diameter is given in millimeters (mm)
Vert Skating – 55-65 mm size wheels
Street Skating try 48-55 mm size wheels (smaller makes the board lighter and makes it easier to flip the board)
All terrain skating (Vert and Street) 52-60 mm

Skateboard wheel hardness value is given using the shore hardness “a-scale”. We have included a scale for your reference
The lower “a-scale” hardness wheels that are around 75a are the gummiest skateboard wheels you will come across. These make less noise when you tick tack around and offer a lot of grip. These are also softer when riding over rough surfaces
The higher “a-scale” hardness wheels in the range of 95a-100a tend to be louder than lower durometer wheels

*Most skaters will be happy with wheels from 50mm to 54mm, with a hardness of 99a for street skate
*Skating in the bowls you wanna go with a 54mm to 60mm wheel for the best ride usually around 84b hardness

Cruising wheels are much larger for speed (59-97mm) and much softer for riding over rough terrain (78-85a). if you are getting into sliding you may want a 82d-86d.