Can I convert my non-tubeless mountain bike rim to tubeless with tape and valve only or will I need a rim strip?Updated a year ago

Can I convert my non-tubeless mountain bike rim to tubeless with tape and valve only or will I need a rim strip?

No. "Tape and Valve" conversions are only appropriate with rims that are labelled as "Tubeless Ready," "Tubeless Compatible," or similar. The BST (Bead Socket Technology) profile developed by Stan's NoTubes was a departure from traditional bicycle rim design and its core concept is the basis for the vast majority of "tubeless-ready" rims and wheels on the market today. Stan's Yellow Tape is not, by itself, a tubeless conversion for older, traditional, non-"tubeless-ready" rims. These older rims require the use of a Stan’s NoTubes Rim Strip (now discontinued) to re-shape the rim bed to achieve a safe, secure tubeless setup This reshaping creates a much more secure BST-like fit between the tire and the rim, allowing for easier inflation/setup and eliminating burping. While Stan's Rim Strips have been discontinued, we continue to provide information and resources to assist in converting non-tubeless-ready wheels.