Aerozine MTB/Road Bottom Bracket Steel Bearings Black

• Designed for MTB and Road Racing
  -  Extremely durable external bearing system.
  -  Forged and CNC Machined from aluminum.
  -  Custom cartridge gearings for longer bearing life.
  -  new water resistant sea

pecification:

BB Cups L&R bearing cups with bearings (BC-1.37" thread)(BC-1.37" thread)

BB shell 1 x Plastic shell / Plastic caps

Spacers

BB Shell Width 68/70/73mm

Weight 93g

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