if its of the mini car type hubs as some of the indispension stub axels are ,,see if a set of old mini hubs from a scrap yard will fit with wheels and use them for launching ,it doesent matter then if the bearings /tyres are a bit knackered as long as grease is on the axel,then keep the good set for when you go on the road ,,,i have the same problem with my s.i.b trailer i dont immerse the wheels as i drive it a long way ,but helpfull club members see you comming in and get the trailer ready in the water submerged thinking they are doing you a favour ,
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