Holy Cow! If you'd told me a week ago that getting new tires on my bike would improve the way my ride felt, I would have told you that you were crazy. But, today I replaced both my tires with brand-new Michelin Pro-Race tires (they're the red ones), and then went riding. What a difference. I especially noticed the improvement over my 'stock-tires', which were some kind of "Hutchinson" tire - I think they go for about $16 back home. I never thought I'd be happy about spending about $100 on new tires, but count me among the converts!