Yup, the HPX I heard are okay. I am on the HPY. However HPX are directional, so if wear is uneven may be more noisy only. Warranty should be 4 years or something, right? Not 1 year. Can double check with GT Radial.Yeah bro, I've been changing new sets of A.Drive R1 for my 17" ride. Btw, I managed to get GT Radial Champiro HPX size 205/40/17 year 2012 for RM180 each. Is it worth it? Managed to sourced it from a close friend of mine in Subang & providing 1 year warranty for the tyres if anything goes wrong with manufacturing defects.