I use Vredesteins from Performance on both my Jamis and my Scott bike. (the ones on the Jamis are Vredestein Fortezza SE Road Tire, the ones on the Scott are grey on the top which makes them very easy to see what's on them) I rarely get flats. I always check them after a ride or if by some chance I happen to encounter glass on the road. One sticker we call "goat heads get in your tires without you knowing it and will cause flats regardless of the brand.

I have tried other brands, including the Conti and found they were too hard to get off the rims. Even the guys riding with me had trouble and they are strong willed and have stronger hands than I do. I want tires I can change by myself as I often ride alone.

The Vredestein Fortezzas are on sale right now for $29.99 which is far less than the Contis. I can get about 4-5000 miles on these tires. If you look up Performance bikes and get to the tire you will find reviews by others as well.

Also, depending on how much pressure you have in your tires affects flats. I now run on about 100lbs each wheel.