Originally Posted by
BlazingPedals
They don't make bottom brackets in 1mm increments. If you're only 2mm off from the ideal, then you're about as close as you're going to get.
Originally Posted by
LarDasse74
It is hard to tell if this is the case for the OP, but there are some BBs that can be adjusted by loosening lockrings on both sides and threading the BB to one side or the other.
Not likely on a cup & cone type bottom bracket. But looking at the OP's picture, if the problem is that the chainrings are too close to the frame, there does appear to be room for at least a 1mm spacer under the fixed cup to move the arm out. If the problem is that the chainrings are too far away, the OP would need a shorter spindle.