Originally Posted by godspiral
Tire width makes a huge difference in rolling resistance, so if you are comparing 35mm 26" (heavy to boot due to being suitable for drops) to 25mm 700c, the difference you feel won't be wheel diameter related.
My folder does feel more sluggish than my hybrid. My normal bike (Giant Cypress DX) has 700x40 at 70psi,
and the folder is 20x1.5 at 60psi. Less rotational inertia though, so I feel quicker off a start, but otherwise.... hey it's only 3 miles.