Tektro Orion HD-M750 Disc Brake and Lever - Rear Hydraulic Post Mount Black Model=XTR Di2 SM-FD905 Front Derailleur Adaptor }Wolf Tooth Premium Headset -

}Wolf Tooth Premium Headset - EC34/28

Frame Mount Width 38

Bolt-on compatible for TT or Time Trial bikes

Color Black Lower Stack Height 4

Rotor Size (mm) 180 Pad Compatibility All Pad Compounds Rotor Type Two Piece Hub/Disc Compatibility 6-Bolt

Tektro Orion HD-M750 Disc Brake and Lever - Rear Hydraulic Post Mount Black Model=XTR Di2 SM-FD905 Front Derailleur Adaptor }Wolf Tooth Premium Headset -Tektro Orion HD M750 Disc Brake and Lever Rear Hydraulic Post Mount Black. The Tektro Orion HD M750 Disc Brake system offers high power and controllable braking. This 4 piston brake is suitable for e bikes with center motors. 4 piston disc caliper offers high power and controllable braking 2 finger brake lever Open system Recommended for e bikes with center motors Easy installation adjustments and maintenance Compatible with I spec II and Matchmaker