Shimano MT800 Press Fit Bottom Bracket
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Shimano MT800 Press Fit Bottom Bracket
Shimano MT800 Press Fit Bottom Bracket


  • Complete XT level press-fit bottom bracket assembly for Shimano HollowTech II MTB cranks.
  • Cups are made from fibre reinforced polymer material which reduces the risk of frame noise and damage.
  • Set includes left and right hand cups, 2.5 mm spacer, inner cover, and inner O-rings.
  • Sealed cups keep out dirt and water.
  • Maintenance free.
  • Compatible with 89.5mm (with 2.5mm spacer) and 92mm shells.
  • 41 mm cup diameter.
  • Easy press-fit installation.
AlexanderExterior is plastic but inside has decent bearings that last really well. These seem to last much better than other BBs I've fitted.
JSY MattWorth the upgrade over the standard Shimano press fit, never had any issues.
Ady DobCompetitive price for a quality BB. Easy enough to knock out the old and press in the new.