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Shimano BB-MT800 HollowTech II Bottom Bracket English Thread - 68/73mm

Customer Reviews (3)

4.7 / 5| Write your review

£22.99

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SJS Cycles part number :

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Details

- Replacement for Shimano Deore XT M770 / SLX M660 BB-70B
- Genuine Shimano HollowTech II bottom bracket assembly.
- Set includes left & right hand cups, inner cover & inner O-rings plus spacers
- Light weight seal structure helps to remove vital grams.
- Sealed cups keep out dirt & water.
- Maintenance free.
- Compatible with 68mm & 73mm shell.
- Durable anodised finish.
- Easy installation with TL-FC25 tool.

Product Reviews (3)

Questions & Answers (2) Q & A

Specification

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Product Reviews (3)

Overall Product Rating 4.7 / 5

Good quality.

By Kevin

26 Aug 2022

4 / 5

I recommend this product

ConsYet another size of BB tool required! To small for standard tool.

ProsGood quality finish.

Good quality and last well

Does what it says on the tin....

By John Somers

23 Oct 2021

5 / 5

I recommend this product

ConsNeed to purchase specific tools to fit and remove

ProsEasy to fit, Light weight, Smooth operation

Well, it's been a couple of weeks since I fitted this XT-BBMT800 of commuting and hacking around my home town in the Chilterns and there have been no concerns with this new BB.

Nice and smooth that considering this has been fitted to one of my single speeders it does need take some rotational wear and downward pressure with track stands etc, so with nothing untoward noted, though I do still to purchase a new tool (so that I can remove it, in hopefully a few years time).

So far so good....

By John Somers

09 Oct 2021

5 / 5

I recommend this product

ConsMy tooling did not fit

ProsEasy to fit, light weight, smooth operation

Easy to fit and seems to be really smooth but will need a few rides before I can comment further about its smoothness and functionality.
One word of warning though...my usual tools (Park Tools BBT-19 and BBT-9) do not fit this smaller Shimano BB, so before stripping out the failed BB (which needed the above tools) ensure that you have the correct tools to fit the BB-MT800 - either the Park Tools BBT-59.2 or the one of the Shimano installation tools.

Questions & Answers (2)

Can I use with Tiagra 4700?

By James Shepperd

13 May 2019

Can I use any Hollowtech II BB?

SJS Customer Service:

Any ROAD one yes, - SJS Cycles part number : 32425ENG

Thanks - 14/05/19

Can I use this with Deore M590 chainset?

By Dan

02 Jun 2018

Can I use this with my Deore M590 chainset as an upgrade?

SJS Customer Service:

Hi there,

Yes this is suitable with the Deore chainset.

Thanks