Spitfire Wheels 99DU Classic Silver

This product consists of skate wheels from the Spitfire Wheels brand, specifically the "99DU Classic Silver" model. The designation "99DU" indicates the durometer rating, a standardized measure of hardness commonly used for skateboard wheels. A 99DU rating signifies a medium-hard wheel, suitable for a variety of skateboarding disciplines. The "Classic" designation suggests a standard shape and profile within the Spitfire lineup. Information regarding specific proprietary compounds or construction techniques beyond the durometer rating is not provided.

The intended use for wheels with a 99DU rating typically includes street skateboarding, park riding, and cruising. This durometer offers a balance between grip and slide, allowing for controlled maneuvers and efficient rolling on diverse surfaces. The "Silver" designation likely refers to the visual aesthetic of the wheel, such as its color or finish, without implying any functional performance enhancement. Standard industry practices for wheel manufacturing dictate the use of urethane as the primary material, though specific formulations are proprietary.

As skate wheels, these are designed for attachment to standard skateboard trucks. The dimensions and bearing seat specifications adhere to universal industry standards for skateboarding wheels. The "Classic Silver" model's construction aligns with the general requirements for durability and performance expected from urethane skateboard wheels. Specific weight, diameter, and width measurements are not detailed in the product nomenclature itself.