julio 22, 2026
Niner Biocentric 30 Eccentric Bottom Bracket Black Aluminum Mountain Bike Niner BioCentric 30: The BioCentric 30 has a similar design and function as its BioCentric II counterpart, but compact for use in most PF30 shells. The sealed bottom bracket will be integrated into the cups of the BioCentric 30 and will be capable of handling most 24mm spindle cranks. The BioCentric 30 is compatible with the Air 9 alloy frame and the RLT 9 only.