I have some experience with only 2 kinds of tires so far:
- I learned that I could inflate my Metzeler Z6 set to 2.9 bar cold without any problem
- Lately I switched to a Heidenau K73 set and they feel to distort at such pressure. 2.5 bar cold feels fine so far, though.
I think the latter really means that their contact patches decrease. At least they feel like balancing on blades or balls or dunno.
The first Z6 set (got them used with Teresa) took 21k km (13k miles) and the second pair (bought them new) 28k km (17.5k miles).
These Heidenaus are new now with 1500km (<1000mi) in them, so I don't really know anything about their longevity. The only thing I know that I got the rear one punctured within the first 1000km... the repair spray has been holding it together since then, though.
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