WikiNerdia is a resource offered by Giantnerd® in an effort to help build a community where everyone can share knowledge in an open and honest way about products, brands, and terminology. This is a call out to all nerds in the know; help out the less experienced adventurers, pass your knowledge on or it will be lost forever! Add to it and make edits as you see fit. As with everywhere else on Giantnerd®, your collaboration will shape the way members treat and view products, categories, and the outdoor lifestyle—it’s critical to making the Giantnerd® community the best shopping site on the social web!
Universal System Tubeless (UST)
UST Tubeless Tires and Rims are found on both Mountain and Cyclocross Bikes. A tubeless tire system requires an air tight rim-capable of being sealed at the valve stem, spoke holes and tire bead. The main benefit of a tubeless UST tire system is the ability to run a lower tire pressure to increase traction without worrying about pinch flats becasue there is no tube to pinch between the rim and a obstacle.