BAC Forum
General Boards => Technical Support => Topic started by: Jeff Wheless on March 09, 2020, 01:20:34 AM
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I am now due for new tires and have confused myself looking at the various size options and such.
I currently have Toyo M120Z 11R22.5
Suggestions on what size tire would be much appreciated. Standard coach configuration. I see several variations in the chassis manual and on various Beaver forum threads.
Am considering the Continental HSR2 SA or Michelin MULTI Z as alts to the Toyos. Have been happy with the Toyos.
Thanks for the assist!!!
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Jeff,
Per the brochure your coach came with 11Rx22.5 / R293 tires. Toyos are a very good tire IMHO I running them on my coach now. They seem to have a stiffer sidewall than Michelins so ride a little bit harsher. It is hard to beat Michelins, but you pay for them. I've heard good reports on both Continental and Hankook but I haven't run either brand on the coach. IMHO do not consider Goodyear. They tend to cup fairly easily and have a nasty habit of sidewall blowouts.
If you know the corner weights of your coach (fully loaded), you can select appropriate load range. You may find the "Tire Inflation Guidelines" article located in Common Problems on the Private Members Only board informative and helpful.
Steve
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thanks!
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Jeff,
Do you know your corner weights? My former coach was a 2000 Marquis that came with 11R22.5 tires and when I weighted it, all tires were overloaded at 120 PSI except the RF location. So I changed the tires to 295/80/22.5 for the extra load capacity, and had no clearance issues. However if your 11R22.5 tires are not overloaded, they are not as expensive as the 295/80/22.5 tires. But if you do not know your corner weights, I would weigh the coach before buying tires, and measure the clearance before any size changes.
Gerald
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Jeff
I have run Michelin, Goodyear, Bridgestone, Sumitomo and now Toyo tires on my various motorhomes. I like the Toyos best. I have the M144, but they do not make that tire in your size. For your application, I would recommend the M154 load range H in 11R22.5. I would assume that your coach has 7.50 inch rims, so that would preclude going to a wider tire. If by chance you have the 8.25 inch rims, you could consider going to a little wider low profile tire like the 295/75. The 295/75 is probably the most common truck tire size on the road today. In either case, I would recommend going with the load range H even if your coach came original with load range G. Coach builders used the minimum tire rated to carry the weight. It is nice to have a little extra capacity and the H tires cost just a few dollars more than the G rated tires.
Richard
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Jeff
On 3 Beavers we have had Michellin, Toyo and Goodyear. All were good and the Michellin ride was best but I liked the feel with Toyo and the price.
Be sure to check the FMCA tire discount.
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We have Goodyear tires on our coach and the tires are now seven years old. No sign of ware or any cracks thus far. However we do keep the coach covered. Last year I replaced the two front tires with Sumitomo tires after doing some research and they are riding very well. I will be replacing the dual rear Goodyear tires probably sometime later this year or next with Sumitomo tires also.
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Thanks everyone.
I'll be going to weight the RV (once I chip the rather large ice dam from behind it) and then reconfirm tire loading. It is essentially stock, but would rather know for sure. I do not have Toyo available locally, so checking the Continentals and Hankooks which I have access to and FMCA pricing.
I've got some other projects to do from this years maintenance fund that I'd rather invest in than the Michelins given the lowish miles we put on the RV annually, but those do seem to get universal kudos.