BB-R9100 SHIMANO DURA-ACE - Bottom Bracket - Threaded - HOLLOWTECH II - 68/70 mm shell width

The Shimano Dura Ace BB-R9100 bottom bracket features smaller lightweight bearings and an advanced seal construction for smoother rotation and increased durability. It is designed to work in combination with the Dura-Ace R9100 crankset to offer optimal stiffness and a smoother pedal stroke.

 BB-R9100 is a BSA bottom bracket recommended for Hollowtech II compatible cranks with 24mm axles. It fits into bottom bracket shells with 68 or 70 mm width. The bearing cups are made of light aluminium and are anodised.

Specifications-

• Suitable for all Shimano road cranksets with integrated axle Ø 24 mm
• Optimized sealing system with reduced friction
• Type: BSA (Threaded, English)
• Shell Width: 68 mm / 70 mm
• Hollowtech II: high stiffness, low weight and improved power transfer thanks to a firm connection between the bottom bracket axle and the right crank
• Material: anodized aluminium, carbon fibre reinforced plastic

• Series : DURA-ACE R9100
• Model No. : BB-R9100
• BB Type : Threaded (English)
• Shell Width : 68 mm, 70 mm
• Axle Diameter: 24 mm (Hollowtech II)
• Average weight : 65g