Oh yeah, Rots are just as bad as any other dog at that. It's their size that makes it that much easier to over exhaust themselves. Golden Retrievers are also well known for this. I have had to stop him before when he goes to hard. Speaking of ATVs...mine also chases ours around. I have a 4x4 Prarie '02 that tops out at about 35-40mph. From a dead stop to go he can beat it across the yard. He loves that game.