ECX Ruckus Ceramic Ball Bearing Kit Capricorn There are many benefits to

There are many benefits to using size 6805-6 ceramic silicon nitride bicycle bearings

making them ideal for high-speed applications

making it a popular choice among professional cyclists and cycling enthusiasts

4 pc 10x15x4 mm ceramic bearings and 4 pc 5x10x4 mm ceramic ball bearings

ECX Ruckus Ceramic Ball Bearing Kit Capricorn There are many benefits toECX Ruckus Ceramic Bearing Kit: made from our legendary Ceramic Nitride Pro Series bearing material, diamond polished silicon nitride ceramic balls, HSR inner cage technology and proprietary tolerances, then sealed on both sides with our no contact seals. We top off each bearing with our 100% synthetic SIN oil for silky smooth and super fast world championship level performance.