• NEW Shimano Dura Ace Road BB-7700 Italian Thread cartridge sealed bearing bottom bracket, in original box. NIB.
• Octalink V1 axle.
• Italian threads, fits 70mm bb shells, double road cranks and has a 109.5mm axle.
• Complete and ready to use.
• Made in Japan quality from 2008.
• 6.3oz./180 grams.
• BB538.
• FREE shipping in the USA.