Agree totally with Fenlanders comments/advice as always.
We had a set of the genuine Zodiac Z61110 transom wheels on our Aerotec with 20hp four stroke. Observations as below;
Good quality but very, very expensive.
No need to drill any extra holes in transom as buttons and top hole already fitted by manufacturer.
Immensely strong/rigid and loads of ground clearance.
Large puncture proof tyres.
Do not hinge up but can be manually refixed in splayed upright position when underway. Fiddly with risk of losing bolts.
If cost not a problem and accept rather fiddly to use then in my opinion these are the best wheels for the Aerotec.