I have that model on both of my bikes and wouldn't do without them. They're great although I do not tow a trailer with my bikes. They support the bike exactly over the point where you'd hang a left sided pannier which makes the bike extremely easy to load and unload. The only time it's slightly tricky is if you're hauling a heavier right sided pannier as the bike becomes a little tippy. So load the left side first, do whatever you need to get ready to ride, hang the right and then start riding.