used one time to transport two Harley cross country.
These are made for heavy bikes like the Harley Ultra's and Road Glide / Street Glide. Will work with lighter sport bikes. Point is they are made to hold those heavy bikes upright
Can be used as shown on a trailer, or you can use them in your shop to hold the bike upright while doing work. Just bolt them the 3/4 sheet of plywood cut down.