Do you have a question related to alignment, steering, handling, braking, fuel economy, tires, safety and maintenance of your RV? Robert Henderson, the president of Henderson’s Line-Up Brake and RV and SuperSteer/SuperStop products in Grants Pass, Oregon, is available to answer questions from readers. You may send your questions by e-mail to editor@rvlife.com.

Question:
I have a 37 ft motor home with 19.5 tires on it I would like to know if 14 ply is over kill I want to be as safe as I can when it comes to my tires
 
Later gater...
Lou Renville


Answer:
Hello Lou,
 
Typically when it comes to tires it is better to be safe than sorry–especially on a heavily loaded vehicle like an RV.  However, before I spent the money for  a 14 ply tire, I would want to weigh my rig and see how much load I was actually carrying per tire.  If you are only carrying 3,000 per tire,  you  won’t need the extra capacity.  
If you have the 8R 19.5 tires on the coach now, I would recommend going to the lower profile, wider 225/70 19.5  tire for better handling and load carrying capability at  lower tire pressure. This will improve both ride and handling.
 
Another factor to consider is your wheels. They may be only rated for 95 lbs of pressure. Bottom line: It won’t hurt but it may not be necessary. Hope this helps.
 
Best wishes for Safer & Happier Driving. —Robert