Originally Posted by
Andrew R Stewart
What did the bike come OEM specwise? Is this 50T ring new/replacement to the bike? Do you have access to another same model bike that you could measure how high off the BB shell the ft der mounting boss is?
This is exactly why I don't like tab mounted ft ders. Much more placement range and no chance for the clamp to cock the cage so one end touches the ring before the other end does. I do wonder if this tab/boss is not parallel to the frame.
I have had to file down the tab/boss's slot at one end to increase the vertical placement range before on service bikes (repair jobs at the shop). The mounting bolt's "washer" might also be able to be reshaped for more range too. Andy
It had shimano 105 R7000 with Ultegra cranks, 52 chain ring before.
My buddy had an emonda SLR and he put the same Sram groupset on his bike and it worked fine.
We are all scratching our heads at this point. The new sram red front derailer has 2 bolt on spots so you can raise and lower as necessary for whatever reason the sram force e1 only has one bolt on.