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Ultegra Di2 FD Screw Into Seat Tube

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Ultegra Di2 FD Screw Into Seat Tube

Old 02-26-13, 09:33 AM
  #1  
mkadam68
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Ultegra Di2 FD Screw Into Seat Tube

I picked up Di2 this past week. Researching how to install the front derailleur, I found some warnings to place a little metal plate behind the FD against the seat tube. (The FD came w/2 in the box.) Apparently there's a little screw that angles the derailleur cage and this screw pushes against the seat tube.
  1. The FD is currently aligned parallel with the large chainring (it looks that way and shifting performance is just as expected), so I don't need to use this screw to change the FD angle.
  2. I managed to see behind the FD and the screw is not touching the seat tube.


Do I still need to install these little metal plates?
If so, how? They come with what looks like double-sided adhesive tape, but I cannot--for the life of me--get the backing off it. I'm trying using tweezers & having no luck. It looks like if I continue I'll just tear apart the tape itself. The box had zero instructions.
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Old 02-26-13, 11:18 AM
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Just a stab in the dark here, but if you can confirm the screw this plate is ostensibly to protect the frame against, never actually touches the frame, then wouldn't you say the plate is redundant?
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Old 02-26-13, 12:42 PM
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Oh I know. I guess I'm asking if the screw will make contact with the seat tube due to moving about or some other mechanism in the FD that's peculiar to Di2. Right now, it's fine. But I certainly don't want that to change.
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Old 02-26-13, 04:21 PM
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The plate is just to protect the frame from the screw. If yours is aligned without having to adjust the screw, you won't need the plate. I set mine up last week, and needed to adjust the angle, so the plate was necessary.

And I've never had that much trouble getting the backing off a piece of 2 sided tape. Thought it was just me. Kind of glad to hear at least one other person struggled with it
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Old 02-26-13, 06:01 PM
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Originally Posted by mkadam68 View Post
The box had zero instructions.
Have you actually looked at the on line Shimano Tech Docs? as this has all the info that is given in retail packaged products https://techdocs.shimano.com/techdocs...&bmUID=jNprJh1
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Old 02-26-13, 07:33 PM
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the screw is called a support bolt. it stiffens up the fd mount. use the plate and screw
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Old 11-09-14, 10:29 AM
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Does anyone know where I can purchase this little steel plate?
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Old 11-09-14, 07:11 PM
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Originally Posted by reptilezs View Post
the screw is called a support bolt. it stiffens up the fd mount. use the plate and screw
+1. Andy.
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Old 11-10-14, 12:58 AM
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Originally Posted by Derrickt View Post
Does anyone know where I can purchase this little steel plate?
Visit your local bike store, they probably have a few extra hanging around - we certainly do in my shop.
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Old 11-10-14, 06:13 AM
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agreed with the above. the screw is a bracing screw, and you need to use it for the f/d to work it's best. This is only the case if it's a braze-on f/d though, clamp on styles have their don't use it. Depending on the frame as well, some companies are making their braze-on mounts long enough for the screw to contact the mount, and you don't need the plate.


Anyway- every bike that might even need one of those plates comes shipped with two of them -- there is a flat one, and one with a slightly curved profile, and you just use whatever one fits the seat tube best. The easiest way to install it is to take the rear wheel off, and have the f/d shifted up in to the big ring. then with tweezers or needlenose pliers you can sneak it in behind the screw. I like to start dialing the bracing screw in while I'm still holding the plate a little off the frame to make sure it will hit, then you can use the screw to push the plate against the frame so it will stick
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