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.
Ceramic Bottom Bracket compatible with 30mm axle chainsets.
The Seal BMX Mid Bottom Bracket features ultra-smooth, fully sealed bearings and is available for both 19mm and 22mm axle sizes.
The Seal BMX American Bottom Bracket features ultra-smooth fully sealed bearings and is suitable for 19mm axle sizes.
The Shimano Dura Ace BB-R9100 bottom bracket features smaller lightweight bearings and an advanced seal construction for smoother rotation and increased durability. It is designed to work in combination with the Dura-Ace R9100 crankset to offer optimal stiffness and a smoother pedal stroke.
This Shimano Deore BB52 HollowTech bottom bracket is specifically designed for use with chainsets that use a 24mm spindle. Featuring an English threaded design that's compatible with 68 or 73mm wide bottom bracket shells, it provides quick and easy installation. Shimano has also equipped it with revised sealed cups that keep out dirt and water, which makes it ready to perform in all-weather and terrain conditions. This bottom bracket (BB) includes left and right-hand cups, spacers, an inner cover, and inner O-rings. Manufacturer's Part Number: BB52B Silver 68-73mm Hollowtech Eng
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 BB92 bottom bracket features cups that are made from a fibre reinforced polymer material, which reduces the risk of frame noise and damage. It includes left/right-hand cups, an inner cover and inner O-rings. Manufacturer's Part Number: BB9241B Black 41mm
Featuring a durable gold anodised finish, this bottom bracket offers increased protection against wear and corrosion. This makes it suitable for all-weather and terrain conditions, while it delivers a smooth rotative performance. It includes left and right-hand cups, spacers, an inner cover, and inner O-rings. Manufacturer's Part Numbers: 68/73mm Option: BB80B 83mm Option: BB80D
This Shimano XTR M980 HollowTech II bottom bracket assembly is perfect for use with Shimano's XTR M980/M985 chainsets. It includes left and right-hand cups, spacers, an inner cover, and inner O-rings. Compatible in all 68/73mm bottom bracket shells, this particular model also features a fully sealed design, so you won't need to worry about water or dirt getting in and affecting performance. Technologies: - Compatible with 68 mm and 73 mm shell. - Durable black anodised finish. - Easy installation. - Fits M980 and M985 chainsets. - Also referred to as the SM-BB93. Manufacturer's Part Number: BB93B
Precision engineered Dura-Ace 7710 Bottom bracket for Track Octalink splined system.
The Shimano XT MT800 bottom bracket features cups that are made from a fibre-reinforced polymer material, which reduces the risk of frame noise and damage. Coming kitted out with a complete XT level press-fit bottom bracket assembly, it's a perfect choice of upgrade for Shimano HollowTech II MTB cranks. Set includes left and right-hand cups, a 2.5mm spacer, an inner cover, and inner O-rings. Manufacturer's Part Number: BBMT800PA