Read reviews for the 12" Cart Wheels and Univ. Receiver by Spring Creek as submitted by your fellow paddlers. All of the reviews are created and written by paddlers like you, so be sure to submit your own review and be part of the community!
I've had several carts but they seem like toys compared to this one. The aluminum bars are beautifully finished with robust welds that will outlast anyone who buys it. The universal receiver is a square aluminum tube that is easily attached and detached to the canoe and spans the width of it. Once you have the receiver you can add other accessories like stability floats, a rowing kit, and in this case, 12" wheels.
It has no axle so ground clearance is incredible. But the best feature, to me, is that you can cart the canoe on it right-side up OR upside-down. I can't think on any other cart that lets you move your boat around upside down, and store it that way on the cart if you like.
It's a bit more expensive than other carts but as the saying goes: "Buy the best, you only cry once."