Designed specifically for gravel tubeless tires, with tire widths ranging from 42-50mm, this innovative insert revolutionizes the wheel-tire system for gravel applicationsIncreases lateral stability and cornering support while also helping protect the rim from impacts and greatly reduces the risk of snake bite style puncturesRun flat foam expansion in the case of a puncture helps to reduce the chance of crashes allowing a safe stopIncreases comfort, cushion and grip provided by the tires650Bx42-50SingleUPC/EAN/GTIN: 8022530035729