Sounds like a good price but a very sus tyre. This tyre is a 5 ply, 213 tpi, with the usual 3 layers for a carcass and two additional layers under the tread. My guess (and that's all it is) is that the sidewalls are made of 30 tpi material, and the extra two layers of 60 tpi material (3 x 30 + 2 x 60 = 210). As a comparison, Schwalbe Marathons use either 50 or 67 tpi in three layers.
I emailed Schwalbe about Continental's rating system, saying: how come your tyre's are 50tpi and Continental uses a big number such as 213? His response (in German English):
"We have a denser carcass, as Continental, therefore we need not so much plies."
I think he is saying Schwalbe uses thicker ply for its 3 layers, whereas Continental have chosen a thinner ply and need more of them.
Continental is phasing out these tyres. This is a quote from: http://www.conti-tyres.co.uk/conticycle/
, describing the CONTACT tyre:
"Designed to be the long term successor to the Top Touring 2000 in the Continental range"
I suspect this is because the TT2000 has such a poor reputation. What convinced me to avoid TT2000s was this email from a user I contacted:
"I only have experience with the narrower tires so 700 x 28 or 32's fitted to a touring bike.* The side wall problem with contis only showed up when fully laden....each tire pumped to its max of 85psi gave out after about 500km's.* The Schwalbes went for 10,000 or more.*It appears that contis are ok as long as you do not overload them....but typically that is what one does when touring.* I would not touch them with a barge pole.....Schwalbe are much better....I live in Canada now but was in Germany recently and bought fresh schwalbes and they're great...can now pump to 110psi+.also they have a puncture resistant belt in them.
If you are using much wider tyres maybe the sidewall is not so much of an issue.
I basically cycled from Munich to MElbourne...I got through 8 contis between munich and Istanbul.* I then put Schwalbes on and they got me to Melbourne from Istanbul*plus approx another 10,000km's unladen after that around the bike paths of Germany.