Whelp... not sure if this is the first... but a manufacturing defect ruined my ride today. Thankfully it happened right after stopping by the dealer and they got me on my way again. There is 2 layers of rubber seals in the rims on the R model (not sure on others)...that make it tubeless/prevent air leaking out the spoke nipples. One is glued/sealed to the rim, then a thicker outer one fits into a groove in the rim. My rear wasn't installed properly at the factory and a small portion wasn't in the groove... took 450 miles to work its way out enough to start leaking air through 1 spoke nipple. It is hard to see in the photos, but the coloration was distinctly different where it wasn't properly seated. May want to (or have your favorite tire shop) pull the tires and inspect this before your first long trek into the back country.