11T and 15T R.D over size pulley cage for reduced drivetrain friction

With Cr-Mo steel bearing.

MATERIAL : AL6061-T6 Cage / AL7075-T651 Pulley
SPEC : Fit SHIMANO® 9000 / 9070 / 6800 / 6870
COLOR : Black
WEIGHT : 88g/set
OPTION : Ceramics ball bearing
Not available in Japan