A commonly overlooked problem with this is that the valve stem's rubber base pulls through the hole enough to cause the locking nut to run out of threads before it can adequately tighten the backing rubber to the hole. Most fatbike rims have only one thickness of metal at the valve hole. Most tubeless valve stems were made for standard double wall rims where the thickness from the inside of the rim to the outside is more than a few millimeters. 8) Recommended optional step – Cut a 1/2” section of an old 700c road tube to use as a spacer/gasket for your tubeless valve stem. 7) Using a clean, damp rag, wipe the rim to make sure it is completely free of puncture causing debris.

If using a BlingStrip, a hot nail going from the inside of the rim, through the valve hole, melts a nice clean hole through both layers of the BlingStrip's overlap. 6) Line up the reinforcing rimstrip's valve hole with your rim's valve hole. This should also cover the edges of the 3M tape & prevent any sharp edges from puncturing the thin latex when the tire is pressurized.

If you have 8 psi OR you want a more robust structural rimstrip, add 2 wraps of clear, non-stretch packing tape around the BlingStrip. It should sit flat on the center channel, completely covering the cutouts. 3) If installing the BlingStrip, trim the width of the BlingStrip to fit snugly between the “shoulders” of the rim. Something is required to reinforce the rim at the cutouts since the FattyStripper is meant just to seal your rim and is not structural. This can be the plain, ugly, vinyl rimstrip that comes with your rim or one of our gorgeous 3M BlingStrips.

A weak dish soap solution and a rag seems to work the best. FattyStripper Installation Instructions 1) Rim preparation – make sure you have your rims reasonably clean and solvent free.

How to extract istripper video