Mounting a used tubular
 

I had to remove a fresh tubular to change the valve extender. What do i need to do to remount this. Both the tire and rim have glue residue on them... do i need to remove all of this or just apply some more glue on top of the old on the rim and tire and put 'em back together.. ?

I believe the correct response is to clean off as much of the old residue as possible before applying new glue (or, Tufo tape).

i wouldn't worry about it...if it starts to give you problems, then clean off the excess glue and start again.

Robthebiker