Full Ceramic
Full Ceramic Soapbox Derby bearings are specially designed for competitive Soapbox Derby enthusiasts in search of the best technology to achieve the absolute least amount of rolling resistance. Full Ceramic Soapbox Derby bearings have high precision, grade 5, silicon nitride ceramic balls, Zirconia ceramic ABEC 5 races, a high speed Peek retainer, no friction peek seals and Boca's exclusive low friction grease. Full ceramic Soapbox Derby bearings are virtually frictionless and roughly half the weight of a steel bearing.