I need some advise. I am trying to make my chain work. I have sized it on the current config, but it now needs more horizontal movement as it won't fit properly. The vert dropouts are I think is what caused this. Can someone give advise? Can I grind the drive side a bit? The left side has adjustment room, but the drive side is really short. The frame is an 85-87 World Sport.



Bike so far. You can see the chain is really loose now. I can not remove 2 links to get the master in there as it becomes too short to put tension on. My front chainring is a 51 and rear is 16.