Ceramic bearings equal increased speed at a lower effort and increased durability for your high end components. Independent testing shows speed increases approaching 4%, i.e. over 1km a rider can gain 20 40m for the same energy output. More than enough distance for a definitive win. MegaExo. Alloy center sleeve with double o ring seals. External oversized ceramic cartridge bearings. Forged and CNC machined external bearing cups. Finish: Anodized cups and sleeve. English threading 68 and 73mm BC 1.37 x 24T. Fits: K Force Light MTB. Fits: K Force MTB, Team Issue MTB. Weight: 150g.
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