Oversize derailleur cage with 12T upper and 16T lower pulley
Pulley are full CNC made from AL7075-T651
With Cr-Mo or steel bearing
Compatible with SHIMANO® RD 9100SS

MATERIAL : AL6061-T6 Cage / AL7050-T651 Pulley
SPEC : Fit SHIMANO® RD 9100-SS
            Fit SHIMANO® RD 9150-SS
OPTION : Ceramics ball bearing
Not available in Japan