Originally Posted by PeteHski

Good info thanks. Sounds like a good tyre option for sure. Michelin are always a quality product.

Likewise I did a 9 hour climbing slogfest (Seemed like a good idea at the time) on my Pirelli P-Zero Race TLRs without issues, pressure around 70/75 psi F/R. No flats or any visible cuts, good grip and very comfortable (30c). Racking up the mileage quite nicely on these now. I'm planning to keep them on for the rest of my summer Sportive events and training and then go back to my Cinturatos for winter/spring training.