Originally Posted by
gaucho777
If you roll a tubular (which often lodges between the rim and the chain stay if it's the rear) and manage to stay upright, this is what can happen:
As I said just above, I do not claim to be an expert. But, that being said, I would still exclaim,
"YIKES! That glue looks like it has hardened in the rim and is no longer capable of "waking up" as the tire and rim heat up. The residue looks like merely crystallized crud. If that is the case, it is not capable of forming a bond to any tire, even though it might be difficult to move off the rim itself.
I have removed glue in this condition using a wire brush attachment on a variable speed power drill. It came of as crystallized dust. Typical solvents were not very effective. IMHO, glue in this state of aging is dangerous.
I am assumming that this is what was there when the tubular rolled.