Problem is, his energy levels are the same as his ancestors but there's no hills for him to run around and no sheep for him to guard. Two walks a day just don't cut the mustard. So how do I make sure he gets more structured exercise, whilst making sure he's safe?
Cycling is the only way I could keep up with Lucky over the sorts of distances that he'd like to cover, and it's something I really enjoy. Problem is if he was on a lead he might run into the bike, which would really hurt him, or pull me off the bike which would really hurt me. I could take him off the lead, but if he was distracted by another dog I might not be able to control him.
So I've made the cycling lead for dogs. It keeps him a fixed distance away from my bike, and because it's attached to the seat post it's much harder for him to knock me off if he pulls.
DISCLAIMER: This works for me and my dog really enjoys it, but that doesn't mean it's going to be right for you or your dog. I don't know anything about either of you, I'm just showing you what I've done. I'm not a dog or a bike expert. You are proceeding at your own risk, and these guidelines are provided on this basis.
If you're riding with a dog and he looks tired, stop. Don't try to go faster than him, and for god's sake don't drag him - you could hurt or even kill him.
Likewise, if you're not confident that you could control your dog when he's on a lead, don't ride with him on a bike! Lucky walks perfectly to heel on the lead, if he was difficult to handle I wouldn't have even though about this. Get advice from a professional.