Yes, that part of Kentucky can be challenging. Weight of a bike can make a difference; but, with so many light bikes at or below 15 pounds comparing with that an old Schwinn at over 30 would make a difference. Then again the lighter bikes are designed for speed and racing. Don't get too caught up in the speed issue so long as you all are enjoying the experience. I would try to find a bike shop and speak with them in regards to the bike, safety and suggestions on routes.