Aerozine MTB/Road Bottom Bracket Steel Bearings Orange
- 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
BB Cups L&R bearing cups with bearings (BC-1.37" thread)(BC-1.37" thread)
BB shell 1 x Plastic shell / Plastic caps
BB Shell Width 68/70/73mm