Ceramic Bottom Bracket cups.
The new, advanced non-contact labirynth seals yield a buttery-smooth spin with unparalleled protection against dust, water and mud. Ultra rigid plastic caps give high compression and deformation resistance, facilitating crisp shifting.
The new, advanced non-contact Labyrinth seals yield a buttery-smooth spin with unparalleled protection against dust, water and mud. Ultra rigid plastic caps give high compression and deformation resistance, facilitating crisp shifting. Constructed of CNC machined 7075 aluminium. Adaptor cups and bearings for the installation of 24mm cranks in BB30 PF frames.
Ceramic Bottom Bracket compatible with 30mm axle chainsets.
Rather than relying on the pressfit shell for alignment, the UBB4630's threaded sleeve locks both cups in place, increasing BB shell stiffness. This also ensures a smooth, uniform spin free from creaks that often plague pressfit while preventing bearing overload. The perfect alignment also means longer bearing life while the sleeve also prevents cable guides rubbing against rotating parts. "The motive for the UBB4630 was to address challenges related to bottom bracket installation and durability with specific frames," said David Martinez, head of engineering at Rotor.
The Seal BMX American Bottom Bracket features ultra-smooth fully sealed bearings and is suitable for 19mm axle sizes.
The Seal BMX Mid Bottom Bracket features ultra-smooth, fully sealed bearings and is available for both 19mm and 22mm axle sizes.
Oversize BB spindle - large 22mm diameter chrome-moly hollow pipe billet spindle reduces weight, increases strength and rigidity
This genuine Shimano HollowTech II bottom bracket assembly comes complete with left and right-hand cups, spacers, an inner cover and inner O-rings. The sealed cups keep out dirt and water prolonging the life of this Shimano XT BB-MT800 bottom bracket. Manufacturer's Part Number: BBMT800B
Please note - TL-FC25 bottom bracket installation tool is not included. Sizing Options: English Thread: for bike frames with 68mm wide bottom bracket shells Italian Thread: for bike frames with 70mm wide bottom bracket shells
This Shimano BB71 mountain bike bottom bracket features cups that are made from a fibre reinforced polymer material, which reduces the risk of frame noise and damage. It also comes equipped with sealed cups that keep out dirt and water, making it suitable for all-weather and terrain conditions. Technologies: - Cups are made from fibre reinforced polymer material which reduces the risk of frame noise and damage. - Set includes left- and right-hand cups, 2.5mm 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. - 41mm cup diameter. - 24mm inner bearing diameter. - Easy press-fit installation. - Shimano XT.
The cups in this Shimano BB71 road bottom bracket are made from a fibre reinforced polymer material, which reduces the risk of frame noise and damage. It also includes left and right-hand cups, an inner cover, and inner O-rings.