Tyres, Wheels, Ply and Interchangability
This might be a dumb question. I have an unplated, unbraked trailer that needs a new wheel. (Goes flat in 24hours - wheel is quite rusty - assume tyre is fine and wheel is not!)
I have two trailers and a caravan all of which have different wheels! I had a previous trailer and still have spare wheels from it which - guess what had different wheels again!
Small box trailer sporting 500/10's - 4 ply. Unplated but would never carry more than 500kg.
Stacking dinghy trailer sporting 145 R 10's. Unplated but I am working on a max working load of 630kg based on the tyres being the lowest rated component.
145R10s (315kg per tyre) cost more than 4 ply 500/10s (359kg per tyre), but about the same as 6 plys (375kg per tyre).
Pretty sure they are both on 4 x 4" PCD's
So can I buy 3 500/10 6 plys for trailer 2 (1 as a spare) and use the spare on Trailer 1 with the 4ply? By can I - I mean (a) practically and (b) legally. The box trailer is rarely towed far so I might be persuadable not to carry a spare and if I got a puncture to "abandon" the trailer and go get the 6ply... to get home only - happy to risk the law on that but not if its a genuine safety risk...