When purchasing skateboard wheels, there are several factors to consider to ensure you get the right ones for your needs. These factors include the size, shape, hardness, and material of the wheels.
The size of the wheels is measured in millimeters, and it affects the speed and stability of the skateboard. Larger wheels are faster but less stable, while smaller wheels are slower but more stable. The shape of the wheels also affects their performance. Round wheels are the most common and provide a good balance of speed and stability. Square wheels are less common but offer more grip and stability, while conical wheels are faster but less stable.