The fact that Hatta Swan R9400 bottom bracket is frequently used by Keirin pro riders is a testimony to it's quality and function. Upgrade and bring your ride to another level. Feel your crank spin as smooth as butter. 

Specifications:

• Axle Width: 109mm
• Shell Type: English BSA
• Axle Type: ISO Taper (Suitable For Sugino 75, Sugino Grand Mighty, Dura-Ace FC-7600, etc)
• Mirrored Polished Ball Race
• NJS Approved