I do not have an inflatable dinghy
but my experience with wheels might be useful.
Wheels: Pneumatic tyres, clamp on frame.
BLA Tinnie Mover - Pneumatic Wheels - Dinghy Wheels - Trailer - Products | BLA Australia
Dinghy: 11 foot aluminium with 9.8 2 stroke
Experience: With wheels positioned forward of the transom to give reasonable balance to the boat, it was easy to move it across hard packed ground and the concrete ramp
at my boat club. Puffing to drag it up the ramp
at lowish tide as height was about 4 metres or more. Fair bit of weight for an old fellow to haul.
On packed sand with some softer bits, it bogged in the soft. I lowered the tyre pressures slightly and it rolled ok but took lots of effort.
I had the wheels a while but didn't really use them much. Then using it and a tube blew. Hadn't lasted long. I couldn't find the exact same tube locally so had to source one from the Internet
. Darn hard things to change. Needed to find a "How to change small tyre" video on U-tube and then I could do it.
Some of the spots I visit, the tide goes out a long way.
Wheels are sitting under my house, I could use them but I am experimenting with filling them with foam to hopefully make them puncture proof and have not finished.
The wheels would be very useful in some of my locations if wheels were a bit wider/taller for the softer stuff and the tubes lasted more than a half dozen months.