Hi, it's time to replace my NV200 tyres 175/70/14 C T95 load (650 Kg) which I think are 6 ply rating...I tow a trailer/caravan at times and carry some heavy solar batteries sometimes. I am looking at upgrading them to a higher spec more popular commercial van/trailer tyres and found on UK caravan/trailers the tyre size is 185/80 14 C !00/102 load (800 Kg) 8 ply rating.... Just 10mm wider and 10m tyre depth larger which I think would be fine any feed back good or bad would be nice to hear.