Wow, nice find. I haven't seen much of those tires since the last time the Olympics were here; here in America that is! I think it was around that time that the Mythos was introduced and the Piranha was let out to sea.revrnd said:I see this tire is not listed on the IRC website.
Anyway it sounds like the Hutchinson Python would be a good tire for you. It has a very low profile tread and rolls pretty easy on pavement, but has a surprising amount of traction on dirt as long as its not too loose or wet. In the mud they will not have as much ultimate grip as a full knobby and will take a bit more attention, but they don't pack up too bad either like many knobbies are prone to.
Durability is decent as well (anything with much bigger knobs will suffer from too many road miles), and they can easily be had for under $50 a pair. Greenfish Sports usually has good deals on Hutchinson tires. Do a search on the forums and check out the reviews to see if others might suggest a similar tire, but I really don't think you can go wrong with the Pythons.