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Shimano Dura Ace BB86 Bottom Bracket

$34.99
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Dura Ace BB86 Bottom Bracket

The 86mm bottom bracket is a relatively new, reasonably beefier BB standard that allows frame designers a little more leeway to play around with seat tube, downtube, and chainstay designs. The new, larger shell requires a larger bracket, obviously, and Shimano designed the Dura-Ace BB86 Bottom Bracket to quite literally fill the gap. While it's a little larger than traditional BBs, the BB86 has the same design as Shimano's other Dura-Ace brackets, with steel cartridge bearings packed inside composite cups and plastic o-rings and dust shields to keep everything running smoothly. The 86 is also compatible with Shimano HollowTech cranks, so you can keep your old crankset even if you're getting a new frame.

  • Press Fit bottom bracket pairs with your Shimano HollowTech cranksets
  • Composite cups and steel cartridge bearings add high quality to the design
  • Inner plastic o-rings and dust shields prevent premature wearing
  • Item #SHI0513

Material
composite, steel
Shell Width
86.5 mm
Claimed Weight
54g
Recommended Use
cycling
Manufacturer Warranty
2 years

Tech Specs

What do you think about this product?

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>Rating: 5

Shimano Dura Ace BB86

I'm using this bb on my new Ridley Fenix SL. Extremely light and incredibly smooth. BTW- The Fenix SL frameset came from CC too. Absolutely love it!! Cheers

>Rating: 5

Like buttah.

Familiarity:
I've put it through the wringer

I use this with Ultegra cranks on my Ridley Fenix SL. The best thing about a bottom bracket is never noticing you bottom bracket. Mission accomplished. It is smooth and reliable.

I have a Fuji nor Kam Tri bike It have a seal bearing Bottom Bearings or on each side I want to put my shimano Durga ace R9100 Crank set on it Which bottom bracket do I need

>Rating: 5

Smooth and sweet.

Familiarity:
I've put it through the wringer

A BB86 shell lacks internal threads and has a 41mm inside diameter.This Shimano BB86 Bottom Bracket Assembly is made to press right into your bike. It will mate your Shimano HollowTech crankset to any frame equipped with a BB86 bottom bracket shell.

>Rating: 5

Smooth

Familiarity:
I've put it through the wringer

There isn't much to say about a well functioning bottom bracket, and there shouldn't be. This works as designed with no complaints.

>Rating: 5

smooth, no issues

Familiarity:
I've put it through the wringer

It's really an industry standard. This thing works great and no problems at all

>Rating: 5

smooth and maintenance free

Familiarity:
I've put it through the wringer

Smooth and maintenance free, isn't that what we want out of a BB? it is for my and after a summer of commuting, training, racing, I don't even have to think about it, it's always dependable.

>Rating:

Does this bb come with spacers?

Hey There, great question, thank you for asking. This particular BB and many others from Shimano in my experience will not come with spacers. If spacers are needed they usually arrive with the spindle or crankset you purchase.

>Rating:

Will this replace a SM-BB91-41 bottom bracket?

>Rating:

I currently have this BB in my bike with an Ultegra 11 speed crankset on a Merckx emx-7. I was thinking of getting a FSA Slk-k light 386evo crankset. Can you tell me if this would work or would I need another BB or some adapters? Thanks!

You will need a different bottom bracket (BB386EVO cranksets have a 30mm spindle, though the spindle length is the same).