my latest experiment was a twin wheel pneumatic one designed for boats on soft sand.. it worked fine until i tried connecting it up to my tow vehicle.. the twin wheels would not go up high enough so it had to come off.. he he..
my battle with jockey wheels will no doubt continue..
I changed mine for a Kartt, handles loose gravel and mud much better than original Swift one. Will have to remember to swop them back when we change van later this year.
------------- 73 going on 25
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I wouldn't mind betting (and I'm not a gambler!) that nose weight plays a big part on how well a jockey wheel copes!
Fortunately my tow bar limit is pretty low (70Kg), so accordingly my nose weight and therefore load on jockey wheel is also pretty low! My HD but standard fitment Alko jockey has been no problem with the sites/surfaces I've encountered (last one with ridiculous deep pea shingle being an exception - hardly fitted the definition of a 'hardstanding', more stone bog!).
Nose weights of 40-50% higher than mine are quite common, that's an awful lot more weight on the small surface contact area of a jockey wheel, it will sink and bog down far more than mine does! Perhaps yet another reason to ensure nose weight is within the prescribed limit!