With an advanced seal construction for smoother rotation, the DURA-ACE is still lightweight at 54 grams.
Bottom bracket with small ball bearings for lightweight
Advanced seal construction for smoother rotation
PRODUCT SPECIFICATION:
Model No: SM-BB92-41B
Series: SHIMANO
HOLLOWTECH II bottom bracket
Press-Fit type ✔
Press-Fit bottom bracket shell width (mm): 86.5✔
Small ball bearing✔
Average weight: 54
Color: Series color
