Thank you, Murdo - Looking at the image you sent, may I assume that the environment is quite dry? Ours is the opposite most of the time. Indeed, I took the quad a few weeks ago across a salt marsh to help rescue a cow which had calved in a ditch (a bit stupid of it!), and the local farmer was quite surprised I even attempted it as when he did so on his Honda he got it stuck! The Honda was carrying much more weight than mine though.