Rotor UBB4630 BBRight ABEC3 for 30mm

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  • Regular price $229.90
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ROTOR UBB4630 BBright BB Steel. You, or more specifically, your choice of frame, motivated us to address challenges related to bottom bracket installation and durability – thank you. We embraced the task to improve upon so-called bottom bracket standards to give you the UBB4630. Crafted from 7000 series aluminum alloy, the UBB4630 uses a threaded sleeve to lock both cups in place – without having all the locking effort rely on the press fit shell, thus providing a uniform spin and avoiding undesired noises.

The flush fitting in the press fit region prevents bearing overload and also improves bearing alignment for a longer bearing life. The external bearing location affords a smoother spin and increased BB shell stiffness for PF30 and BBright standards. The internal sleeve also prevents cable guides from rubbing against rotating parts.


Weight 109g
Material 100% CNC-machined, 7075 aluminum. Labyrinth seals prevent bearing contamination
Compatible Crankset Brand ROTOR
Material Bearing Steel
Axle diameter compatible 30mm
Frame Type BBright
Shell Width 79mm
Discipline Road | Triathlon | Gravel | Cyclocross



*Subject to availability. Specifications subject to change without notice.