The SHIMANO BB-ES300 is a premium bottom bracket engineered for Octalink cranksets on BSA-threaded frames (73mm).
Its 8-splined interface delivers superior strength and rigidity compared to conventional square taper spindles, optimizing power transfer and overall assembly performance. The 22mm hollow chrome-moly spindle balances lightweight construction with exceptional durability. Featuring a sealed cartridge design with oversize ball bearings and high-efficiency rubber seals, it resists dirt, mud, and water while requiring minimal maintenance. The tool-free installation makes setup straightforward for any rider. Built for demanding terrain and consistent performance.
Specification
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Model: BB-ES300
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BB-Type: Octalink
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Threaded: BSA
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Threaded BB shell width: 73mm
Size
- 113mm
- 118mm
- 121mm
- 126mm
- 121mm E-Type
- 126mm E-Type
Material
Contents
- 1 x Shimano BB-ES300 Octalink 73mm BSA Bottom Bracket
