I just bought a Giant Sedona which I guess is classified as a comfort bike. I will be riding it around 10 miles each way. It has worn out tires on it now but they were regular comfort style tires. I want to know if i can replace them with tires you would see on a "road bike". I also want to know if this is recommended. I do not want any troubles with the bike in an attempt to modify it. I will only be riding on the road. The tires are 26x1.95. If I can replace them with tires that will make the bike faster, what size should I use? Will it make a big enough difference to even do this? I don't want to waste money or F up my bike so if you answer but aren't positive, let me know. Thanks for your help