It's time to replace the tyre's on the Triton 185/ 70/ R13 (T) (86) . This is what is on there now. This is also written in the Eriba Amiga text on tyre's. When I spoke to Blackcircle Tyre's they said that these tyre's were not suitable for a caravan and that they where car tyre's , what I should have are 185/70/ R13 (N) (106). Now that has really thrown me, there is only £1 difference in price so they are not advising me to gain financially . So this is my problem , do I take their advice or do I stick to the book? Blackcircle are one of the biggest tyre dealers in the country so I feel that they must know what is right or wrong plus this advice came from their office not from a chap on the works floor. All thoughts would be appreciated .