The Flow EX3 rim s Tiebeam inner bridge lets it withstand impacts that would deform most rims to the point of air loss and structural failure. Even if you use a tire insert; huge impacts can cause the sidewall of most rims to fold; causing air loss and eventual failure. The Tiebeam brace and patented low walls of the Flow EX3 resist this folding; maintaining air pressure and structural integrity better than any other rim. Combined with the added durability of 6069 aluminum and 29mm inner width oReinforced 29mm width rim shape optimized for 2.3-2.6� tires and built to handle AM, DH, Enduro, and anything elseProven with wins at World Cup DH and Enduro World Series eventsTiebeam triple cavity 6069 welded aluminum rim resists dents and air loss during impactsPatented Bead Socket Technology offers easy inflation and the most reliable airtight seal3-year rim warranty with 1-year crash replacement---