Shimano Shimano XT External Bottom Bracket (BB-MT800)
Shimano Shimano XT External Bottom Bracket (BB-MT800)

Shimano XT External Bottom Bracket (BB-MT800)

C$46.00 Excl. tax
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Shimano has designed their new bottom brackets (including this one) with smaller ball bearings, which reduces friction and drag, giving you rotational forces that are smoother than a baby's bottom...some might say. The smaller ball bearings also seal better, keeping dirt and debris exactly where they should be: NOT in your bottom bracket. Also notable is the black anodized finish that'll keep you free of rust for years to come.


  • Actual weight: 75 grams
  • For threaded bottom bracket shells
  • For 24mm Shimano Hollow Tech II cranks
  • Small ball bearings
  • Lightweight seals
  • Maintenance free
  • 68/73mm bb shell compatible
  • One year warranty
  • Made in Japan

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