The CeramicSpeed PF30 SRAM DUB Mountain Bike Bracket houses superb quality and handbuilt mechanics Featuring CeramicSpeed Standard Bearings that are installed into cups the bearings have super smooth super round CeramicSpeed balls contained in hardenedsteel races The CeramicSpeed PF30 is designed specifically for 2899 spindle cranks with a native fit frame interface for minimal excess spacers and zero plastic adapters The CeramicSpeed Standard bracket can last three times longer than other bearings thanks to the hardenedsteel races and ceramic balls that are 100 smoother and 15 harder than the ceramic competition These feature a frictional drag of 0304 watts per set which represents an average 75 drag reduction compared to most bbs The CeramicSpeed Pf30 SRAM DUB Mountain Bike Bracket promises unparalleled in durability and efficiency to take your ride to the next level

Frame PF30 Opening Diameter 46 Shell Width 68