Condition:
New old stock. Never installed. Shows light surface rust and shelf wear from storage. See photos.

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Description:
Original Shimano BB-ES30 sealed cartridge bottom bracket.

• Shell width: 73mm
• Spindle length: 118mm
• Thread: BC 1.37 x 24 (English/BSA)
• Interface: Octalink splined spindle
• Sealed cartridge design
• Made in Japan

This is a maintenance-free sealed unit designed for Shimano Octalink cranksets. Provides improved stiffness over square taper systems

Fitment / Applications:
Fits bikes with:

• 73mm English threaded bottom bracket shell
• Shimano Octalink cranksets

Common on:

• Shimano Deore / Alivio era MTB cranksets
• Hybrid / trekking bikes
• Older mountain bikes using Octalink interface

(Will not fit square taper or Hollowtech systems)

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Notes:
New old stock with minor cosmetic rust from shelf life. Does not affect function. Please verify measurements and compatibility before purchase