04-06-17
Front derailleur installed.
The derailleur is an
Ultegra FD-6870 Di2 model and the clamp is a
Dura Ace SM-AD91-L 34.9 mm adapter for braze on derailleurs.
Unlike the Parlee adapter clamp previously discussed, the Shimano clamp fit both the frame and derailleur perfectly. It is very nicely made and is surprisingly light.
The derailleur was attached to the clamp and then the clamp went around the seat tube between the two bottle cage bolt holes. Both use a 5 mm hex head bolt at 5-7 Nm torque.
Shimano provides a handly little orange sticker on the derailleur which helps align it to the outside edge of the biggest chainring - just line up the teeth with the drawing on the sticker, make sure the derailleur cage is parallel to the chainring and tighten the bolts.
Bottle cages clear the derailleur clamp using two nylon spacers.
