Tutorial - How to fit a tubular tyre with tub tape

Tape on top of glue is fine. In fact, contrary to Vince's guide, I would most definately not clean the rim of glue unless it's very old and crusty. I've tried using Velox/Jantex tape on a new, clean, alloy rim and it just doesn't stick very well. It seems to work best when there's glue on the rim to bond with.

I've gone over to glue exclusively now though, it's pretty simple (and not very messy) once you've done a few.

I forgot the tape, on Sunday, because I am ESN.

Hopefully the tub would have stuck to the glue already on the rim, if I had encountered that sinking feeling.