CeramicSpeed BB ALPHA Bottom Bracket - English/BSA 73mm For 30mm Spindle MTB BLK ModelNumber=D1759 Hardened ultra steel shackle with

Hardened ultra steel shackle with reinforced sleeve over crossbar and cylinder for added security

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This is a true class leader of its type

CeramicSpeed BB ALPHA Bottom Bracket - English/BSA 73mm For 30mm Spindle MTB BLK ModelNumber=D1759 Hardened ultra steel shackle withA bottom bracket built to outlast your frame BB ALPHA features hardened stainless steel races hand built with grade 3 Silicon Nitride ceramic balls custom engineered seals and precision dust covers delivering up to 500% better moisture protection while still providing ultra low friction performance. The simplified spacer tube design and lighter 7075 aluminum cups ensure quick installation and a 10% weight reduction over previous generations. All