World Trade Association (1998) manufactures the Xtreme brand of giant OTR tires. Most sales are by direct containers, but some inventory is available in the USA. WTA has 350+ years of experienced personnel in this division. In addition to OTR, WTA sources PCR, LTR, and TBR for customers around the world in flagship brands. Automotive Aftermarket Products (division WTA) manufacturers the Quik-Chek TPMS. A press and check color coded system with one SKU for 20-44 PSI.