I just changed the Continental GP4000 700 x 25 tires on my Giant FCR1 for Continental Gatorskin 700 x 28 tires for a "better" ride. Am I crazy or should the 145 gram difference (215 vs 360) per tire be that noticable? I have not ridden very far yet but they seem slower to me. Not sure if my mind is playing games on me or not. I didn't expect to feel any difference.
What are your thoughts?