CeramicSpeed BSA MTB Bottom Bracket - BSA Thread 73mm 24mm Spindle Coated Races BLK MFPN=3NNKA1BLU CNC machined from a solid

CNC machined from a solid billet of 7075 aluminum

Designed to fit Shimano 4-arm 96 Asymmetric BCD XT M8000 SLX M7000 or Deore M6000 1x or 2x cranksets

Now featuring SRAM's DUB technology this design simplifies the relationship of the spindle to the bottom bracket

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CeramicSpeed BSA MTB Bottom Bracket - BSA Thread 73mm 24mm Spindle Coated Races BLK MFPN=3NNKA1BLU CNC machined from a solidCeramicSpeed BSA MTB Bottom Bracket BSA Thread 73mm 24mm Spindle Coated Races Black. The CeramicSpeed BSA (English) bottom bracket offers bearings with extremely low friction improved power transfer and a service life that far exceeds traditional steel bearings. TECH SPECS Defined Color Black Bottom Bracket Shell I. D. 1. 37 Spindle Interface Type Shimano Hollowtech II Weight 91 BB Shell Width (mm) 73 BB Frame Interface English