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They're not even as thick as GP4000s which are a race tyre.
@plasticniki
I'd be looking at Duranos for winter/audax durability. No one likes fixing flats when it's -1degC.
They do a 28mm and if you really want it to last forever there's Durano Plus.
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if i stick with 28 then i'm just gonna stick with lifelines probably. i've used both the prime armour and the prime race versions over winter (i reckon about 8000km in total) with no flats. then my brain goes "ride something nicer, go 32" and then i do a silly loop of not being able to decide and then going back to the lifelines.
https://www.bicyclerollingresistance.com/road-bike-reviews/continental-grand-prix-4-season-2015