I am die hard GP 2000 fan, I tried these P4 seasons to ride on the lake path when weather allowed. The lake path is littered with crap and a ton of salt. Not one nick or slice on the tread, I was shocked to be honest. I expected some cuts here and there. Handling and speed were better than expected and I would highly recommended these over GP 4 seasons. They have an amazing road feel and my times did not suffer and they dont feel heavy or slow.
The ride quality is superior to all my other 25 mm tires. The tire height profile runs larger. I bought the 28 mm sized tire and it could not fit in the SRAM red brake housing.
I bought the 28 mm with and it did not fit inside my SRAM brake assembly. The 25 mm fit and I love the quality and performance of the tires since I put them on. Only 250 miles on them so far but
I hadn't ridden skinny tires on any of my bikes in many years. A rental bike from Maui Cyclery with 25mm tires got me stoked to step it up a notch. While I love Compass Bon Jon tires for pretty much everything, I started the search for the best all around 28mm tire. After quite the search I landed on the Pirelli PZero Velo 4s. Light enough, quite durable and loads of grip. What else could I ask for? I rode them for a bike trip to AZ and I'm impressed. Four days of riding up and down mountains and they performed exactly how I wanted them to. Yay!