Threaded UBB4630 designed to solve issues with PF30, BB386 and BBright shells

Rotor has bolstered its Universal Bottom Bracket (UBB) line up with a new UBB4360 design that uses a threaded sleeve to improve on PF30, BB386 and BBright standards by increasing durability and ease of installation.

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 the creaks that often plague pressfit bearings 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 respect to specific frames," said David Martínez, head of engineering at Rotor. "We added the UBB4630 to reinforce our UBB range."

Made from 7000 series aluminium alloy and weighing just 109g, UBB4630 is available now in steel and ceramic models for PF30, BB386 and BBright.

View full UBB4630 range on the B2B.