ok so someone left some tires with a sign "free tires" at the park the other day so I snagged a few, they are used but usable so I thought I would try them. right now I have the stock specialized 2.1 tires on my bike both front and rear. the ones I picked up are 2 totally different tires, not sure what kind cause they are in my car right now, ones a 1.95 racing tire with an almost continuous tread in the middle to minimize rolling resistance, and the other is a 2.0 panaracer if memory serves me.
basically my questions are do you guys usually run matching tire? would I see any real improvement if I put these on my bike (1.95 racer in front, panaracer rear)?