Shimano BB-ES300-AK Acera Bottom Bracket

  • OCTALINK Bottom Bracket
  • Two options available, 2-PIECE CRANKSET construction (T4060) and OCTALINK (T4010)
  • 44-32-22T/48-36-26T spec available
  • Smooth and precise shifting performance with HYPERDRIVE technology
  • Quiet shifting operation by reduction of driving noise (48T)
  • Chain case compatible
  • With or without chain guard
  • ALIVIO logo (T4060), SHIMANO logo (T4010)
  • Better sealing performance (SM-BB52)
  • Color options: Black, Silver
Structure_Standard X
Axle length / shell width_113_73mm_(BC1.37) X
Axle length / shell width_118_68mm_(BC1.37) X
Axle length / shell width_118_70mm_(M36) X
Axle length / shell width_118_73mm_(BC1.37) X
Axle length / shell width_121_73mm_(BC1.37) X
Axle length / shell width_126_68mm_(BC1.37) X
Axle length / shell width_126_73mm_(BC1.37) X
Axle length / shell width_113_68mm_(BC1.37) X
Axle length / shell width_113_70mm_(M36) X
Axle length / shell width_121_68mm_(BC1.37) X
Spindle_Octalink X

Our HELP CENTER has a detailed list of commonly asked questions by our riders.

What is the estimated delivery time for this item?

Once an order has been placed, we aim to process and ship from our warehouses within 48 hours. An email with tracking details will be sent as soon as items have shipped.

Delivery timelines depend on
1. Product Availability
2. Location of Delivery

Broadly speaking, our logistics partners deliver within 1 to 14 business days depending on the location of delivery.

Remember, "Business Days" exclude public holidays and Sundays. Remote areas take additional time.

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Can I Return/Exchange an item?

You have 15 days to return an item from the date you received it. 

Returns & Exchange are eligible only in the following scenarios:
1. Was delivered in a damaged condition
2. Missing parts or accessories
3. Incorrect item delivered
4. Has manufacturing defects

Returns & Exchange are NOT applicable for Colour, Sizing issues or incorrect purchases.

Kindly Refer to the Sizing Chart or reach out to us for assistance.

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