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Shimano Alivio Bottom Bracket ? BB ES300 (Octalink, Threaded), 68*118


The Shimano Alivio BB-ES300 Octalink bottom bracket features a stiff and lightweight design for better power transfer. It comes with durable spline-reinforced construction with increases the strength and rigidity of the entire assembly. 

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  • Series: Alivio T4000
  • Type: Octalink
  • Size: 68-118mm


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