Machined to the tightest tolerances. Onyx hubs use sprag internals for strength, extremely low rolling resistance and infinite points of engagement. All Onyx hubs come standard with ceramic hybrid bearings so there is no need to upgrade. Hardened heat treated stainless steel driver Internal and external lockring compatible Integrated labyrinth seal on driver Adjustable side load Patented sprag clutch mechanism Knurled stainless washers with grippers Uses HG compatible cogs 3/8" bolt on, 12mm, 15mm and 20mm thru axle capability
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