Shimano 105 RD-R7150E Di2 Rear Derailleur - 12-Speed For 2x12 Speed Direct Mount BLK MFPN=212976 The Mota tread features the

Shimano 105 RD R7150E Di2 Rear Derailleur 12 Speed For 2x12 Speed Direct Mount BLK MFPN=212976 The Mota tread features the The Mota tread features the same progressive width design as the Martello which provides for a progressive fine touch tactile feel on the effective edge Length 240 Color Black Rail Material N A Weight 145 Saddle Cut Out No Width 125 Material Composite Defined Color Black Clamp Style Pivotal }tr:nth child(even){background color:#f2f2f2}th{background color:#eb212e This is the hub of the Shimano Di2 system with the charging port indicator LEDs adjustment switches and more integrated into a compact package