Cannondale introduced the BB30 standard in 2006. It is aiming to increase the pedalling efficiency by decreasing the distance between the pedals – decreased Q-factor. BB30’s bottom bracket bearings fit inside of the frame bottom bracket shell directly requires the shell ID 42mm and the width 68mm. With a need to install a SRAM DUB 29mm spindle crankset into the BB30 frame, it will require this DUB BB30 ceramic bottom bracket for the conversion. DUB BB30 provides the BB30 standard cup to fit the bottom bracket shell, in the meantime, accommodates the SRAM DUB 29mm spindle cranks.
Features:
– Brand new designed for BB30 standard frame, fully compatible with SRAM DUB 29mm spindle cranks
– CNC machined BB cups
– ABEC 7 standard alloy steel bearing races
– Grade 3 Si3N4 ceramic balls – highest precision in the market
– Kluber grease
– Specially designed Nylon bearing retainer for more shock absorbing and less friction
– Light touch Dual lip rubber seals for a better protection
Weight:
– 104 g
Frame requirements:
– BB30 standard frame (non-thread) with shell ID 42mm, width 68/73mm
Crank compatibility:
SRAM DUB 29mm spindle cranks
Alternative of following SRAM DUB BBs:
– DUB™ BB30 Bottom Bracket (Model ID: BB-DUB-BB30-A1)
