Just buy this thing. It’s amazing. I got it when it was about $55. What a steal. Way better than my Railblaza C-Tug. Works on ANY size and probably works on canoes too because the strap they give you is so long. Actually it’s too long but whatever. Better too much than too little. The only downside is that it’s pretty large and takes up a lot of space in my car. Yeah, I know you can break it down but I don’t want to do that. Just buy it. You’ll love it. I use it for both of my kayaks.