FeaturesShield free design – No more shields to get damaged or pop offTungsten coated races – Micro-thin tungsten dry lubricant coating is fast, slick and non-stick to minimize dirtAudible speed technology – RAW bearings are designed to enhance the sound of speed.Maximum Impact Cage Design – Super strong, non-distortion fibreglass filled pure nylon cage keep the balls precision spaced.Deep groove raceways – Balls sit and roll deeper in the raceway channels. This dramatically reduces axial and angular side impact damage.Shred ready quality – Packaged in nitrogen-filled packaging. This reduces metal and oil oxidation until ready to be ridden.Includes 8 bearings.