This is a replacement 2018 Specialized Tarmac Derailleur Hanger w/bolts for rim brake model bikes (Shimano Standard). To choose the correct derailleur hanger for your bike, it is important that the hanger is identical in appearance to the one it is replacing. Carefully compare images with the actual hanger to ensure that the shape is the same and that the bolt holes are in the same locations. Not the exact hanger you're looking for? Check out our selection of Specialized Rear Derailleur Hangers. OEM Part for the following Specialized Bikes: 2018 TARMAC MEN SL6 EXPERT 2018 TARMAC MEN SL6 PRO FRMSET 2018 TARMAC MEN SL6 PRO UDI2 2018 TARMAC MEN SL6 SW Di2 2018 TARMAC MEN SL6 SW FRMSET 2018 TARMAC MEN SL6 SW FRMSET SAGAN SUPERSTAR 2018 TARMAC MEN SL6 SW ULTRALIGHT FRMSET 2018 TARMAC MEN SW SL6 ULTRALIGHT Di2 2018 TARMAC WMN SL6 EXPERT 2018 TARMAC WMN SL6 SW Di2 2018 TARMAC WMN SL6 SW FRMSET