I bought a 650b x 39mm strip to replace the original/OEM strip that came on my Roval Traverse rim. So happy that I spent the extra time researching what was originally on the rim when I bought it. The strip fits tight and does not have any adhesive. Never had issues with original strip and wanted to stick with the same setup. No I don't have to worry about messing with tape not sticking, whether to double wrap, etc.