HiTen stays. Should I upgrade my mtb?
Definetely not. If it is a good rider and suits your needs then use it until dust. If you are a heavier rider, even more so. I don't know if the ones I've owned had hi-ten stays and didn't care too much; a GT timberline (snapped drop out), a Raleigh Elkhorn (snapped seatstay top tube joint) and a BRC explorer (multiple headtube failures).