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I'd rather get another bike then do that again.
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It's not the gum wall that interests me (though that does look nice) it's the 30mm size and the tread pattern. They look ideal for my Amsterdam-Calais ultra-lightweight tour.
The Netherlands are pretty puncture safe, but Belgium in my experience is as bad as the UK and I'd ideally use the same tyre on my trip to NYC in June.
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By They, you mean Zipp, Continental, Schwalbe, HED, Specialized, Enve, Bontrager, Shimano, Reynolds etc.?
Since I've never heard anyone claim that clinchers are lighter than tubular solutions... So are we talking about aerodynamics (whatever that means since its not that easy to talk about especially on the road given side winds and pack effects but even on the track its hard to address)? Handling? Rolling resistance? Puncture resistance? All of these soft features come together to define if something is "faster".
Can't really speak about Schwalbe and some of the others.. Bontrager? You mean Trek? Did not know they did any R&D on tyres... Don't they source their better tyres from Lion (Vittoria)? I've never seen any studies by Schwalbe-- heck they, I think, stopped being in manufacturer decades ago and morphed into more of a trading house with their tyres being made by Swallow, these days Hunga's Indonesian factory. Conti, of course, still makes tyres-- and still makes their top tyres in Germany (and some even handsewn). The studies they've done working with elite riders I've seen did not support the claim. Continental is, if I recall, not even convinced that latex inner-tubes are, in practice, "faster". They afterall equip their top riders typically with special buytl tubes-- within the ProLtd production teams that demand latex can get them but most get buytl. Changing production and materials (such as their abandonment of cotton)? I asked a few years back and was told it was related to the availability of materials from within the Conti group and not performance. Zipp? Does not seem to be Zipp's well published opinion either.. Is there consumer pressure towards clincher solutions? Sure. Its large. Most of the European and American makers of high end full carbon wheels I've spoken with-- including those selling clincher wheels-- don't really like them but try to offer what they consider is the best product they can under the given constraints. Most of these companies need, afterall, to sell their wheels.
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Back in the 1970s the tubular tyre of choice for Audax was the Clement Seta Campionato del Mondo. Wider tyres = Comfort?
Because in the 1970s, the conventional wisdom that skinnier tyres at a higher pressure = faster, and of course, the British audaxers tend to stick to skinny tyres at the time (the French does the opposite by going for balloon tyres)
The Clement Seta Campionato del Mondo were quite wide-- about the widest tyre one could fit into the bicycles of the era without switching over to cantilever brakes. I'd peg them at something like 28mm or so. Narrow tyres was a 1980s thing kicked off by the "aero" revolution (Assos, Wolber, etc.)..
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Which Tyres?
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Valid point. It's incredibly, incredible close with 25c GP4000s on Archetype. Schwalbe one are easy in 25c. Pretty keen on the Vittorias, but just wondering what size to go for as I guess I won't be able to return them once fitted...
Edit: Bicyclerollingresistance.com reckons they come up at 24mm high (same as current Schwalbe One), vs GP4000s at 25mm. Eesh. Just realised that the sensible thing would be to check with the GP4000s 25c I have in my parts bin when the new wheels arrive. But #buyer