Shimano Octalink Bottom Brackets

Shimano use the Octalink spline system on their mid-range cranks and bottom brackets. It is being replaced on the dearer cranksets with the Hollowtech II system (outboard bearing).

Shimano BB-ES25 68 x 113mm
+
2425
!
Basic Shimano Octalink Bottom Bracket.
Weight is for 126mm axle length. The ES25 bottom bracket also comes in versions to suit 73mm bottom bracket shells, and 68mm shells with an E-type front derailleur.

Shimano BB-ES300 Octalink 68 x 118mm
+
1245
!
Genuine Shimano Octalink bottom bracket.
For bottom bracket shell width 68mm. Axle Length 118mm.

Shimano BB-ES300 Octalink 68 x 126mm
+
90925
!
Genuine Shimano Octalink bottom bracket.
For bottom bracket shell width 68mm. Axle Length 126mm.

Shimano BB-ES300 Octalink 68 x 121mm
+
2279
!
Genuine Shimano Octalink bottom bracket.
For bottom bracket shell width 68mm. Axle Length 121mm.