SHIMANO ULTEGRA 6700/6703 BOTTOM BRACKET
HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency
HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability
More from Shimano
Product Code: AAA-070
We aim to despatch orders within 1-2 working days.
If despatch is going to take longer we will let you know.