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Shimano BB91 Road Press Fit Bottom Bracket

Complete press-fit bottom bracket assembly for Shimano HollowTech II MTB cranks.

Features:

  • 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 89.5 mm (with 2.5 mm spacer) and 92 mm shells
  • 41 mm cup diameter
  • Easy press-fit installation

A 2 year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).

Buy Shimano Components from Chain Reaction Cycles, the World’s Largest Online Bike Store

 

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