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Old 02-03-2016, 09:32 AM   #1
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Mix tires on axels

Just thinking! To prevent tire failure on a rear axel tire due to a nose up stance( yes , all possible adjustment done except frame build up) has anyone changed the rear axel tires for a higher rated tire to ease tire worries. That is now have D rated-60# on front and will change for same brand E rated-80# on rear. Everything I find on tire mixing only refer to tires on same axel ; but on tandem not so much? Will the different tire pressures cause suspension problems or just put the E's all around ? Still have a small weight bias on the rears ,but a higher margin over the D's. Yes, the rims can handle the80#.
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Old 02-03-2016, 09:40 AM   #2
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They always recommend replacing both tires on the same side if you need to replace one, so why not change all 4?
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Old 02-03-2016, 10:30 AM   #3
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I was thinking I would change all 4 as well. Since the rear set will be taking more abuse, perhaps just rotate them front to rear once a season? (depending on your usage of course)
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Old 02-03-2016, 11:16 AM   #4
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I'd replace all 5. With two different sized tires, are you going to carry two spares as well? With 5 the same, your spare can go to any position.
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Old 02-03-2016, 01:00 PM   #5
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In my opinion, you will want to keep an eye on the rear spring packs. They may collapse. Especially, if you change to larger tires. Those 2 tires on the rear will be carrying even more weight! The priority would be to get that trailer level.

Just my opinion and I could be all wrong!
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Old 02-26-2016, 10:17 PM   #6
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After much reading and fretting ; I will be putting on five new Maxxis st225/75r15 LRE (upgrade from LRD). Found them at the Maxxis estore Canada. I hope to have a worry free summer of camping .....at least in the tire dept.!!
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Old 02-27-2016, 11:39 AM   #7
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After much reading and fretting ; I will be putting on five new Maxxis st225/75r15 LRE (upgrade from LRD). Found them at the Maxxis estore Canada. I hope to have a worry free summer of camping .....at least in the tire dept.!!
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Old 02-27-2016, 11:42 AM   #8
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Quote:
Originally Posted by Pickup jockey View Post
After much reading and fretting ; I will be putting on five new Maxxis st225/75r15 LRE (upgrade from LRD). Found them at the Maxxis estore Canada. I hope to have a worry free summer of camping .....at least in the tire dept.!!
I am sure you will be happy with your choice.
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Old 02-27-2016, 04:15 PM   #9
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Have you had the trailer weighed to see what each tire load is?
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Old 02-27-2016, 06:09 PM   #10
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Hello, Not yet... still in winter storage. I will throw out some numbers from what I know, the 27.5 bhs comes with two 4400# axels (8800# max) for a trailer rated at Gvwr of 9900# Short by 1100# from Jayco . Fitted with ST225/75r15 load rated D (2540#x4=10160 -9900 margin of 260#). The load rated E tires (2800x4=11200-9900=1300# margin). I know that they calculate a weight transfer to TV but Jayco could have at least used a 5000# axel ! Plus there is no room to upgrade to 16' tires, this the best I can do without rebuilding the trailer.
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