Shimano SM-BBR60 Ultegra / FC-CX70 / 105 Hollowtech II Bottom Bracket
Brand: SHIMANO
Color: English
14 g lighter than SM-BB6700
smoother than SM-BB6700 (50 % less friction)
small ball bearings keep weight low
bearing cups anodized
recommended for Ultegra FC-R8000, FC-6800, 105 FC-5800, Metrea FC-U5000, FC-CX70