I used to have Vittoria Zaffiro Pro Slick tires on my Cannondale CAAD9 5 and loved these tires but had a few punctures within the first 200 miles and then a streak that messed up one during New York. Century. I decided I needed something more permanent but without the huge expense. I've driven about 100 miles on these tires and I really like them. 23s ordered. They are slightly narrower than a Zaffiro of the same size. Believe it or not, the Serfa Seca seems to handle corners a little better than the Zaffiro. They also provide better road feel without being stiff. The Serfa Seca seems to have slightly more rolling resistance than the Zaffiro. Serfa Seca collects a lot more sand/stones than Zaffiro. I expect this to decrease as tire wear increases. After 100 miles (50 in New York and 50 in Boston) at an average speed of 18 mph, the seam seam is still visible - it's not so easy to determine the wear from the low mileage I have quoted. on it, but that's about all I can offer in terms of wear at the moment. Also the Serfa Seca'a blue, although totally superficial, matches the 2010 Cannondale CAAD9 5 blue perfectly. I went with wire beads based on reviews that said more issues with foldable versions. The fit was perfect on my wheels. Tire levers would be required to remove them, but installation was fairly typical for a wire bead.
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