Shimano Dura-Ace BB-7700 Bottom Bracket | English 1.37×24 | Octalink V1 109.5mm

Description

Notes from MyBikeThing This Dura-Ace BB-7700 bottom bracket delivers Shimano’s legendary precision engineering with silky-smooth rotation and exceptional durability. The sealed cartridge design offers maintenance-free performance with superior power transfer, distinguishing it from lower-tier components with its refined build quality and premium bearings.

Condition This Dura-Ace BB-7700 bottom bracket is in excellent condition with minimal signs of use. The silver finish shows only light surface marks consistent with normal installation, and the spindle rotates perfectly smooth with no roughness. The threads are clean and undamaged, and all seals are intact. The lockring and mounting hardware are included and in great shape.

You put in the miles, we put in the work! 30 day Guarantee, rest assured of fit, function and condition. – Paul

Tech Specs

• Shimano Dura-Ace BB-7700 series
• Sealed cartridge design
• 109.5mm spindle length (marked L→109.5→R)
• Type: Octalink V1
• Standard English threaded (BSA/ISO) BC 1.37
• Silver finish
• Includes lockring and seal
• Japanese manufacturing
• Weight: approximately 172g
• Shell Width 68mm