I have a modified Trek Utopia and I rode it to work and back today. It was a total of 20 miles on the road with cars! I went in the morning around 9am so there wasn't as much traffic and I hadn't rode a bike in months so I was averaging like 10-15MPH both ways so it took about 45 min each way for me and the way back sucked cause it started to get super windy and it was blowing me so hard right in my face almost the entire time. Last night I used it to go a couple miles down the road to walmart and locked it to those shopping cart cages in the parking lot. I was so worried about it I was like running around the store getting what I wanted and filled up a backpack with groceries and had two extra bags that I put on my handle bars and rode home carefully cause I had eggs. I hardly ever use my bike cause I usually have a car but my hubby took it out of town so it's all i have but it was neat finally really using it for something. Ever since I got it I have wanting to use it for more than just casual riding with friends to justify the 900 I spent on it and extra 600 on upgrades and mods to it. Oh yeah! well when I was on my way back about 3 miles from home I got a flat and didn't have a spare or anything with me so I walked my bike the rest of the way but along the way there was a bike shop so I went in to get another tube but I couldn't remembr what size so I just told them to find out what tires came stock on it cause had those in my storage room so when I got home I put the bigger size tire on the back so now it's got a fat back tire that has those bumpy things on it and my thin fast road racing tire in front. I don't think I like it that way maybe it's good for better traction?