SHIMANO OCTALINK MTB Bottom Bracket
FEATURES
- Stiff and lightweight for efficient power transfer
Durable spline reinforced construction
8-splined OCTALINK interface increases the strength and rigidity of the entire assembly
26 g lighter weight than BB-ES25
- Quick and precise assembly
Good chain line control with chain stabilizer

PRODUCT SPECIFICATIONS
- MODEL NO BB-ES300
- SERIES SHIMANO ALIVIO T4000 Series
- Structure|Standard ✔
- Spindle|Hollow pipe ✔
- Spindle|OCTALINK ✔
- Axle length/shell width (mm)|113|68 (BC1.37) ✔
- Axle length/shell width (mm)|113|70 (M36) ✔
- Axle length/shell width (mm)|113|73 (BC1.37) ✔
- Axle length/shell width (mm)|118|68 (BC1.37) ✔
- Axle length/shell width (mm)|118|70 (M36) ✔
- Axle length/shell width (mm)|118|73 (BC1.37) ✔
- Axle length/shell width (mm)|121|68 (BC1.37) ✔
- Axle length/shell width (mm)|121|73 (BC1.37) ✔
- Axle length/shell width (mm)|126|68 (BC1.37) ✔
- Axle length/shell width (mm)|126|73 (BC1.37) ✔