For speed training I like to run the dogs on the side tethered to a Springer like device and move at quicker speeds. Usually for speed training I look for more level areas and trails so the bike even though it’s battery powered it rolls easier on level ground and let’s the Dogs run and surge as fast as they can while tethered. I use my smaller bikes, trikes, and quads because of their easier mobility and quicker stopping ability as we are moving at faster speeds. I have even rented a Horse Training Track to run the Dogs on the sandy track (good for their paws). Additionally I arranged to train with some Horses to help motivate the Dogs to reach their full potential!