They're the ones. I don't need new tyres for a while yet, just speculating (I really must get out more!)
A mate has a Rio the same age as mine and had to get new front tyres when it went in for its first service (he does drive like The Stig though). The dealer fitted Roadstones (never heard of 'em), made in China, and charged him just over a hundred quid for 'em.
low end korean tyres never provide much performance other than light pottering around, i suppose the Rio in general are designed for that in mind. My Rio came with Hankook Solus, and in the wet with the heavy diesel lump in the front, its just bordering dangerous. The price you pay to get the exact tyre model you're looking for, if you manage to find them, you can get better tyres for the same money. I suggest Kumho Escta or Falken for budgets.