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With an advanced seal construction for smoother rotation and small ball bearings to minimize weight, the SHIMANO DURA-ACE bottom bracket is offered in both pressfit and threaded options.

BENEFIT

• Bottom bracket with small ball bearings for lightweight
• Advanced seal construction for smoother rotation

PRODUCT SPECIFICATION

• Model No – BB-R9100
• Series – Shimano
• Hollow-Tech Bottom Bracket – Yes
• Threaded Bottom Bracket Type – Yes
• Threaded Bottom Bracket Shell Width (mm) – 68-70
• Small Ball Bearing – Yes
• Average Weight – 65 gms

FEATURED TECHNOLOGY

HOLLOWTECH II – Providing the best balance of stiffness, strength, weight and rotating performance
The concept of HOLLOWTECH II technology is focused on producing a superior crankset which will maximize a riders power transfer. The r