6806 2RS Ceramic Cartridge Bearing BB30 ID=30 OD=42 W=7 30x42x7mm Ceramic Ball Bearing
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Product Details
Ultra high performance BB30 Ceramic Bearing for bicycles with diamond polished Ceramic Silicon Nitride Balls (the hardest and smoothest ceramic balls on the planet)
Dual Removable Rubber Seals (2RS)
ACERGoo 100% Synthetic American Lubricant
Durable Nylon Inner Cage
Super Smooth, Quiet, Extremely Durable and 60 day no hassle money back guarantee