Quote Originally Posted by laura* View Post
Could the tires be inflated too much? It sounds counter intuitive because higher inflation means less sidewall flex and thus less energy lost flexing the sidewalls. However, overinflation also makes you bounce over every little road/trail irregularity. Lifting you up a millimeter and then dropping back down takes a lot more energy than you might save in reduced sidewall flex.
Nah...I have a hard time going even 9-10mph on the paved road with this bike and have to kill myself to do so--it feels like the bike is fighting me every pedal stroke. By contrast my POS Schwinn that I had years ago that was too big, had much lower-end components, and weighed more was easy to roll at 11-12mph when I had no cycling fitness. I can get a heavier Salsa Mukluk fat bike going much faster on the road than the F5, with FAR less effort. Generally we have the tires on the F5 around 30psi, IIRC.