Funny story, if I may...
I mailed my bike to WA state to my parents house 1 week before I was going to fly up to seem them. I had a really nice C-Dale Super-V that I'd decked out to beat the band. I was to stay at my parents for 1 week and then come back to reality. When I arrived, my bike had not yet showed up. I waited 3 more days and it finally was dumped over the fence in a mangled box. I took it outta the box and it was completely trashed. I was beside myself.
My dad said "Here buddy, ride my bike." He pulled out his Huffy 18 speed mountain bike that was everything you wanted in a WalMart bike. I was scared, but I decided..."what the heck", it's better than not riding at all.
My dad drove me up to the top of a mountain and I rode down it (on the paved / gravel road) with him following me in his little Bronco II. When we got to the bottom of the mountain, he said I was doing 55mph. It was the fastest I'd ever gone on a bike and it was on a Huffy.