First fitment to motorcycle. You can see the clamps at the left. I was playing with the tongue length here. I settled on very long. I read somewhere that the length from the center of the axle should be about 2-3 times the axle width. I don't know if that's right, but it works and is pretty balanced at this length also. The trailer is 30" wide x 4' long, and with the tongue, it's close to 8' long. The finished trailer weighs about 225 pounds by the way.