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>ride 99% on pavement
>ride 100+ miles a week
>ride usually 4-6 hours per day
>lots of somewhat steep hills
>keep pic related at around 70-75 psi front and rear
Would I get a noticeable benefit from switching to slick 26x1.75 touring/road tires? Was looking at getting some Marathon HS 420's. How much do knobbies on a wider 26" tire effect road performance?