Originally Posted by
Sculptor7
Think I was just reading about those the other night. If I am correct they screw into the dropouts from each side and can show the degree of misalignment.
Further on the crank problem I have started dismantling that area and with the chain off the chainrings I can see that there is a wobble of about 1 or 2 mm in the chain ring relative to the bb. This bike does not warrant all this work but I am curious to see if I can correct the problems particularly having spent some time prettying it up with new tires, bearings, bar tape, cables, etc.
Sculptor -
Just bear in mind those Park tools will square the DO's to each other, but won't correct the fork is it is parallelogramed.
If there is a noticeable wobble in the chain ring, then it's more than likely the chainring itself is bent (along with the aforementioned guard). If you can't straighten it, it may be time for a new crankset.