GUB BB30-DB Bottom Bracket
Material: aluminum alloy body + nitrile seal ring + PE seal cover
Process: CNC T6 strengthening treatment
Specifications: outer diameter: 42mm，five-way width: 68mm-73mm.
Suitable for crank: SRAM DUB crank, crank axis: 28.99mm
N.W.: about 106 g, G.W.: about 130 g
BB bottom bracket series-interlocking design
1. Interlocking design can reduce noise & increase rigidity
2. Sealing system is easy to maintain and lubricate
3.Double O-ring design can effectively prevent water from entering the five-way, and can be used as a buffer for the frame and BB
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