BOTTOM BRACKET SM-BB72-41B PRESS FIT TYPE FOR ROAD RIGHT & LEFT ADAPTER 86.5 MM

BOTTOM BRACKET SM-BB72-41B PRESS FIT TYPE FOR ROAD RIGHT & LEFT ADAPTER 86.5 MM

Ultegra level bottom bracket for Shimano Hollowtech II cranksets in press-fit bottom bracket shells.

With reliable SHIMANO bearings and seals, the Shimano Ultegra bottom bracket has a long service life.

• Optimum power transfer
• Lightweight maintains efficiency
• DURA-ACE proven 4-arm design: Same stiffness and lighter weight
• 14 g lighter weight and half the friction of the SM-BB6700, while maintaining the same durability
• Variety choice of gearing: 53-39T/52-36T/50-34T/46-36T
• 86.5 mm shell width
• Weight: 69 g