• Shimano ES51 Octalink Bottom Bracket

    • HOT PRODUCT48 people are looking at this item.

        • $35.49 35.49
        • RRP $39.99 - $56.04
        • Save Up To 37%
    • Select Colour
      Select Option
      English Thread
      Select Size
      68 x 113mm
      68 x 118mm
      68 x 121mm
      73 x 113mm
      73 x 118mm
    • See delivery information

      Need next day delivery?

      Order in the next


      and choose Next Day Delivery at the checkout

Shimano ES51 Octalink Bottom Bracket

Splined bottom bracket for use with Shimano Octalink chainsets.


  • Oversize BB spindle - large 22mm diameter hollow pipe billet spindle reduces weight, increases strength and rigidity
  • Octalink splined axle/crankarm interface -results in more rigid crank assembly compared to square tapered spindle
  • ES51 has anti-corrosion treatment inside hollow spindle
  • Sealed cartridge assembly - maintenance-free sealed cartridge keeps out dirt, mud and water
  • Cartridge design allows easy installation without adjustment
  • Aluminium adapter
  • Average weight 262 grams

A 2 year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).

Buy Shimano Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.

  • Delivery cost $9.99
  • Delivery toUSA
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

    More information on returns
  • Pay by PayPal, Bank Transfer or Card


  • Colour: Silver
  • Size: 68 x 118mm, 68 x 113mm, 73 x 118mm, 73 x 113mm, 68 x 121mm
  • Option: English Thread

Interested in Shimano Bottom Brackets?

Bottom Brackets Buying Guide

  • We've got everything you need to know in our buying guide.

Also Consider...