Originally Posted by
noglider
There is no need to clean old glue off a tubular rim, so no apologies for that. When I installed tires without glue, there was residual glue on the tire and rim. I don't defend the practice, but I don't think it's as stupid as putting on a tire with no residual glue.
I cleaned my rims once. That was enough. Never did it again.
When the old Clement red glue was popular, sometimes the residual glue was enough. During the summer, if you got a flat and replaced it on the road, the old Clement glue would remelt and glue the tire on almost as well as if it had been newly glued. Being a bit OCD about mechanical issues and always an aggressive descender, I'd reglue them anyway, but sometimes I asked myself "Why am I bothering?"
Now that all glue is more akin to the old Conti or Panaracer contact cement type, I'd be a bit more careful.
AFA rolling around on brand new never glued or perfectly clean rims - bad idea. The OP is lucky not to have rolled a tire and crashed.