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Posted
  On 12/8/2023 at 12:29 PM, lechatnoir said:

I have some work to do on the BB's on my MTBs. Threaded with an outside diameter is 44mm and 16 notches. For the life of me, I don't know what I need. 

thanks

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If it's thread-together, better to get two? (I have both and the thread-together one side is prone to turning when you tighten so with just one it's difficult to get decent torque into it)

Posted
  On 12/8/2023 at 12:29 PM, lechatnoir said:

I have some work to do on the BB's on my MTBs. Threaded with an outside diameter is 44mm and 16 notches. For the life of me, I don't know what I need. 

thanks

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Should be the bog standard Shimano one.

 

Posted
  On 12/8/2023 at 4:34 PM, droo said:

Should be the bog standard Shimano one.

 

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Didn't shimano  change their BB cup  size so you  need the little plastic reducer that fits into the old shimano standard BB tool?

As far as I know they sold those reducers with the BBS

Posted
  On 12/8/2023 at 5:17 PM, Jewbacca said:

Didn't shimano  change their BB cup  size so you  need the little plastic reducer that fits into the old shimano standard BB tool?

As far as I know they sold those reducers with the BBS

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Yes, they do sell the reducer with the BB (at least the Ultegra one did).

But you will need a spanner to fit that reducer into.

Posted (edited)
  On 12/8/2023 at 6:09 PM, Frosty said:

Yes, they do sell the reducer with the BB (at least the Ultegra one did).

But you will need a spanner to fit that reducer into.

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Indeed, hence me saying you will need the reducer that fits into the standard Shimano BB tool that droo said he would need...... you likely need both?

Edited by Jewbacca
Posted
  On 12/8/2023 at 6:27 PM, Jewbacca said:

Indeed, hence me saying you will need the reducer that fits into the standard Shimano BB tool that droo said he would need...... you likely need both?

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I have a PRO tool that has the bb ring, with a set of plastic adaptors.

 

Certainly more sizes and standards out there than I am have seen ...

Posted
  On 12/8/2023 at 5:17 PM, Jewbacca said:

Didn't shimano  change their BB cup  size so you  need the little plastic reducer that fits into the old shimano standard BB tool?

As far as I know they sold those reducers with the BBS

Expand  

They did indeed, but the 44mm one is the OG HT2 one. No plastic doofer required. 

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