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
-
Model: BB-ES300
-
BB-Type: Octalink
-
Threaded: BSA
-
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
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Weights are based off pre-production products at time of publication. Weights may vary in final production.
