Joined: May 2017
Posts: 698
Likes: 294
From: NE Ohio
Bikes: 77 Trek TX900, 81.5 Trek 950, 83 Trek 970, 84 Schwinn Peloton, 88 Schwinn Premis, 85 Pinarello Montello, 88 Lemond Pro, more...
The high limit screw is adjusted as much as possible. Any further movement out and the chain jumps off the big ring. There is still chain rub when in the big ring and the two smallest cogs. Could the FD be bent? Is there something else I should check?