Description
The Shimano BB-ES300 Octalink bottom bracket provides dependable support and smooth rotation for Shimano Octalink cranksets. Shimano uses a sealed cartridge design to keep maintenance low and performance consistent over time.
This bottom bracket fits frames with a 68mm BSA threaded shell (BC 1.37″ x 24 TPI) and uses a 121mm spindle, making it suitable for many MTB, hybrid, and trekking cranksets that require a wider chainline. Installation stays simple and secure, making it ideal for repairs, replacements, and refurb builds.
This item is New Old Stock and boxed. It’s unused, factory packed, and ready to fit—offering genuine Shimano reliability at a reduced price.
Key Features:
- Shimano BB-ES300 bottom bracket
- Octalink crank interface
- 68mm shell width
- 121mm spindle length
- BSA / BC 1.37″ x 24 TPI thread
- Sealed cartridge bearings for low maintenance
- Condition: New Old Stock (boxed, unused)
Details
| Bike Type | Commuter, Cruiser, Folding, Gravel, Hybrid, Mountain (MTB), Race, Road, Tandem, Touring, Track, Women’s |
|---|---|
| Product Type | Bottom Brackets |
| Size/Fit | 121mm, 68mm, BSA |
