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The lower the pressure, the less likely a glass will pierced through, the wider the tyres, the more surface area = weight distributed more evenly, lowered the likelihood even further.
Has this actually been tested anywhere ?
People used to claim the 320tpi Vittoria's where less prone to punctures because as they where supple they deformed around any nasty objects in the road. In my experience they're the most puncture prone tyres I have owned
Anecdotally the rubber compound, the amount of rubber and the puncture protection strip make far more of a difference.
Ste_S-
Good question -I'm up to 2.000 miles on Vittoria 320tpi (open corsa cx 25c) @80psi with 3 punctures total.
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'... relative to other tyres with the same thickness/performance'
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People used to claim the 320tpi Vittoria's where less prone to punctures because as they where supple they deformed around any nasty objects in the road.
By that logic the Vittoria Pista Evo CS must be the totally reliable :-)
I don't want to start on a rant about the marketing of TPI-- kind of like clock rate in CPUs but with the added twist that some vendors count each layer-- but higher thread count does not lead to higher defense against sharp objects like glass. The point of high TPI is, in concept, to allow for thinner, lighter casings and to reduce the tread contact patch, whence reduce rolling resistance and improve "ride feeling". High TPI tyres are, however, more rather than less prone to fault. To get around this vendors tweak the rubber mix (adding nano carbon or graphene) and add special breakers under the thread.
Where "flexibilty" does indeed lead to lower fault rates is with the inner-tube. A thick latex inner-tube weighs around the same as a thin butyl but has a distinct edge in fault resistance-- latex has, however, a number of issues that make the decision not as clear cut as this statement might make things appear.
Thuekr
hippy
EdwardZ
The lower the pressure, the less likely a glass will pierced through, the wider the tyres, the more surface area = weight distributed more evenly, lowered the likelihood even further.
I assumed the same decade ago from listening to old timer sprouting conventional wisdom, only to realised recently it's actually the opposite.
The likelihood of getting punctured is still higher due to the higher pressure and smaller contact point, meaning a glass will very likely pierced through when it does, and people still get punctured on skinny tyres to this day despite the advanced in technology.
Only to a certain degrees, the stiffness and weight is the downside of such tyres, the less flexible the carcass is, the more chance of getting punctures, so it's a catch-22, once the tyres finally gotten strong enough to actually resist getting punctures, it'll be very heavy and stiff, making it less enjoyable (I'm looking at you Durano Plus).
Doesn't the Giro come only in 22mm? I refer you to the first comment.
Yadayada marketspeak, what matter is whether it deliver enough grip in the wet, feel fast and doesn't get cut up easily (although cut up does not equal bad tyres), the majority of time is really luck, some people managed well with it, some got repeated punctures on the very same day.
Continental spokesperson >>>>>>>>>>>>>>>>>>>