Nah, shouldn't cause any problems at all for you. I used to ride my GT set up for trials 7 miles to my nearest town (before I could drive!) to ride (and then back again of course!). The only thing to keep an eye on if you're going to be riding distance is things like pedals and cranks. If they come loose while pedalling you could trash the tapers/threads etc so if something doesn't feel right, stop and check it out. Otherwise you should be good.