Features Pack of 8 Pro Model: David Gravette Deep Groove Raceways- balls roll deep in raceway channels - reduces side impact damage and breakage Straight Edge Frictionless Shields- pop off resistant - holds oil in, dirt and moisture out- easy to clean Micro Groove Raceway Surfaces- linear micro-groove surfaces improve bearing lubrication, speed and spin Max Impact Cage Design- non- distortion custom cage keeps the balls precision spaced and oil circulating Balls Out Technology- eliminates shield and cage contact on impact for a go fast, stay fast bearing High Speed Ceramic Oil- nano-ceramic compounds for wear protection - moisture, rust, corrosion resistant Factory Fresh Quality- nitrogen filled shrink wrap, reduces metal and oil oxidation until ready to be ridden Bronsons signature bearings for David Gravette.
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