On 03/15/2015 05:48 PM, Peter Adler wrote:
When the L'Eroica folks in Tuscany terminated their sponsorship deal with Challenge and signed a deal with Continental, Challenge renamed their 30mm gravel/road tire as Strada Bianca, and did a dual-layer puncture protection (PPS) change, heavying the tire up a bit, in an effort to address the alleged fragility of the P-R design. The current-gen P-Rs have the same dual-PPS layer. I'm not clear whether the change was made in both models at the same time, but that seems likely.
Based on my experience with the Parigi Roubaix, I can affirm that the fragility of the design is very, very real. This has to be the most flat-prone tire I've ever seen. It's also, at least in its original pre-PPS form, one of the nicest riding. It's actually uncanny how smooth this tire can make badly eroded and cracked pavement feel. It is also without a doubt the most difficult tire to mount initially. Volumes could be written about how hard it is, and the arcane tricks you have to resort to to mount these tires. Fortunately, after a week or so on the rims and inflated to pressure they stretch enough to make dismounting and remounting not too problematic -- a good thing, because chances are by then you'll be doing so by the side of the road.
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