Shimano bb92 road press fit bottom bracketcomplete 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 inner cover and inner o rings sealed cups keep out dirt and water maintenance free compatible with 86 5mm shells 41mm cup diameter easy press fit installationa 2 year warranty is offered with all shimano products from chain re