Joined: Feb 2012
Posts: 19,373
Likes: 5,516
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
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
__________________
AndrewRStewart