My son in-law called me this morning said he bought 6 Yokohama Tires for his 1998 Endeavor DP. He called yesterday said they wanted $2400 for 4 Michelin tires out the door, then this morning he called...
When I was driving over the road, I used yokohama tires on both my tractor and trailer. Never had an issue with them and never seen any cracking. But then, I was moving all the time and not sitting.
I would highly recommend them for Motorhomes or HDT's. Don't have any opinion about the smaller tires.