tonyjaya +1. Well said. Can o worms here. Like how my disc brakes are far superior to rim brakes. On my 29er, I sit between the wheels , not over them. I can climb better with my 29er, than with my 26 er. Much better for rolling the rocks and logs. For commuting, look at your standard hybrid, flat bars, 29er wheels, sort o fat tires. For your 29er/ 700 wheels, they travel farther per pedal stroke than a 26er. So one pedal stroke for your 26er to go one wheel revolution, vs 29er/ 700c goes farther. I bring the popcorn. YRMV. Ride waht you like.