SHIMANO SM-BB72-41B PRESS FIT BOTTOM BRACKET
Shimano SM-BB72-41B is a pressfit bottom bracket that is recommended for 105 11-speed cranks. Weight is saved thanks to its small ball bearings. This bottom bracket also has an axle diameter of 24 mm (Hollowtech II), which has proven to be optimal in terms of rigidity and rotational efficiency.
SPECIFICATIONS:
APPLICATION: ROAD, GRAVEL
SERIES: ULTEGRA, 105, GRX
INSTALLATION TYPE: PRESSFIT BB86
DIAMETER: 41MM
HOUSING WIDTH: 86.5MM
AXLE DIAMETER: 24MM (HOLLOWTECH II)
BEARINGS: STEEL
BOTTOM BRACKET SHELL MATERIAL: SYNTHETIC RESIN
