Shimano Dura-Ace BB-7700 | English 68×113.5 Bottom Bracket | Octalink V1

Description

Notes from MyBikeThing This vintage Dura-Ace bottom bracket features precision bearings and Shimano’s renowned durability for smooth pedaling performance. The Octalink spline interface provides superior power transfer and stiffness compared to square taper designs, making it a standout component in the Dura-Ace lineup.

Condition This used bottom bracket shows normal signs of wear consistent with its age, including some surface oxidation on the metal housing, but the threading and spindle are in excellent shape with no damage. The bearings still rotate smoothly with no play or roughness, making it a perfect replacement for your vintage build or restoration project. ou put in the miles, we put in the work! 30 day Guarantee, rest assured of fit, function and condition. – Paul

Tech Specs

• Model: Shimano Dura-Ace BB-7700
• Type: Cartridge sealed bottom bracket
• Shell width: 68mm (English/BSC)
• Spindle length: 113.5mm
• Spindle interface: Octalink v1 spline system
• Thread direction: Right cup (drive side) – left-hand thread, Left cup – right-hand thread
• Construction: Aluminum cups with steel spindle
• Made in Japan
• Weight: Approximately 240g

vintage bottom bracket, Dura-Ace, Shimano 7700, Octalink, splined interface, cartridge BB, 68mm, road bike, classic components