This insert has been solid so far. I am running one in the rear tire of my Revel Tirade hardtail to allow me to run lower pressure for traction and comfort. Tire is a Conti Magnotal 29x2.6 on an Elite Wheels Gnar Trail II carbon 30mm rim. I am 165# kitted up and am able to run 14.5 psi with zero issues. I did need an extra set of hands to get the insert over the rim and the tire installed, but it wasn't too difficult. Just a 30g penalty over the Vittoria Air Liner I had been running in the previous 2.4 Magnotal.