Dura-ace Shimano Road press fit bottom bracket with inner cover, for 86.5 mm

Bottom bracket with small ball bearings for lightweight
Advanced seal construction for smoother rotation
Weight: 65g (SM-BB9000) 54g (SM-BB92-41B)
PRODUCT SPECIFICATIONS
MODEL NO SM-BB92-41B
SERIES DURA-ACE R9100 Series
Average weight 54g
Press-Fit bottom bracket shell width (mm)_86.5 ✔
Bike Type Comfort
HOLLOWTECH II bottom bracket_Press-Fit type ✔
HOLLOWTECH II BB Type Press-Fit
Press-Fit BB Shell Width 86mm
Small ball bearing ✔