I ride both kinds of cycles. i'll admit though when i first got my bonnie, my road milage took a plummet. granted it was winter time so i could blame it on something else. :razz:
ever since then i've been trying to balance it out. it's kinda hard but doable. i would do a bicycle ride in the morning while still cool, then hit the streets in the afternoon. works out pretty well and you definitely get the best of both worlds. :-D
and 357Bob, it will do you good to stay away from those walmart bikes. they are that cheap for a reason... so you have some money left over for the medical bills when they fall apart from underneath you.