Is 153,000 Miles A Lot For a 1997 Class C ?

Bordercollie wrote:
Yes, RV tires deteriorate sitting parked. Tires on cars and trucks, that are driven a lot/frequently get internal lubrication and are safer to use based on miles and tread depth. If RV is stored indoors, and driven frequently, and sidewalls are not seriously cracked from sun and weather, they may be safer to use past the 5 year point. It's generally not worth it to risk tire failure, on the road and disruption of a trip though it seems a shame and wasteful to replace $300 RV tires every 5-6 years. Opinions on this vary with personal experience.

Well, its probably because ours move a little more that we haven't problems over the years but so far we have been lucky with Michelins 10 year recomendation so we will stay with that. Having said that we changed at 9 years last time because there were a few cracks showing up on the sidewalls. Everyone has their comfort zone though. I get that. Having said that if someone close by is changing out a set of 22.5 michelins in a few years I'll be happy to buy them off you for a good price. :)