I wonder if anyone with a bit of tyre knowledge can help. My tyres on my Sterling 460 (MTPLM 1295 kg ) are 5 years old and I want to change them. Tyre size is 195 x 70 load/speed rating 91 T. I want to get maximum ply rating/reinforcing and am looking for the best tyre and fitter, as I know that some of them do not like Tyrons. Any ideas very welcome!