The Black Bearing B5 BSA 29mm DUB is the Euro bottom bracket to use with your 5DEV cranks.
The Blackbearing bottom bracket range has been specifically developed to withstand the most extreme conditions.
The BBlock technology (built in 2 threadable parts) allows a better alignment of the casing in its assembly offering several advantages:
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Minimises possible cracks
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Greater protection to the bearing extending its useful life
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An easier replacement of the bearing.
- CNC machined aluminum.
Suits 5DEV cranks
