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XT BB-MT800 Bottom Bracket

5 out of 5 stars
1 Review

Out of Stock

Don't worry though, we have a lot more Mountain Bottom Brackets in stock than that.

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Smooth spinning.

Keep your cranks turning smoothly with the Shimano XT BB-MT800 Bottom Bracket. Made with small ball bearings for impeccable rotation and strong seals to fend off muck, this bottom bracket is built to last. One could break out the measuring tools and power washers to wade into the XTR vs. XT debate, but in the end this one will save you some cash and keep you rolling down the trail with ease.

The Shimano XT BB-MT800 Bottom Bracket is compatible with threaded 68mm and 73mm shells.


  • Swap your worn bottom bracket for this worthy replacement
  • Threaded design promises fewer creaks
  • XT-level design is hardworking and friendly to your wallet
  • Item #SHI008U
[cups] aluminum, [bearings] steel
Shell Width
Crankset Compatibility
Hollowtech II
3 x 2.5mm spacers
Claimed Weight
2.9oz (82g)
mountain biking
Manufacturer Warranty
2 years