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Old 06-06-2012, 08:16 AM   #1
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13" to 14" wheels?

did a few searches, couldn't find any info...

i have a 19H... wanting to upgrade my wheels and tires to 14" from the original 13" that's on there now... i plan to go with aluminum wheels and hope to gain a bit more safety margin with the larger tires... i have brand new marathons on now, so it will be a bit before i make this swap...

has anyone done this?

is it even advisable? i understand the need to keep the wheels a certain distance apart. the bolt pattern seems standard. i can imagine it riding a bit rougher on the larger tires... maybe not.

i don't plan to carry any extra weight in the camper, just wanting a bit larger tire, if i can get away with it.



EDIT: did find this thread... https://www.jaycoowners.com/showthrea...ghlight=wheels
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Old 06-06-2012, 11:43 AM   #2
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It can be done; I cannot help with ensuring the correct (minimum) wheel clearance. My Dad did it, on a trailer (two trailers back) when they had a blowout on a cross country trip. He used truck tires (that was all that was available in the middle of nowhere) with a larger sidewall ratio, this way he was able to use the existing rims. As I recall the trailer pulled better and dragged the rear end less. He never had a blowout or any issues on those tires.
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Old 06-06-2012, 04:56 PM   #3
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It can be done; I cannot help with ensuring the correct (minimum) wheel clearance. My Dad did it, on a trailer (two trailers back) when they had a blowout on a cross country trip. He used truck tires (that was all that was available in the middle of nowhere) with a larger sidewall ratio, this way he was able to use the existing rims. As I recall the trailer pulled better and dragged the rear end less. He never had a blowout or any issues on those tires.
Just make sure you have fender clearance and at least 3in between the tires so they won't hit a bump and rub. It should ride better with taller tires. You may have to adjust your hitch to keep the trailer level.
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Old 06-20-2012, 11:19 PM   #4
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You should not have a problem with the 19H. My Starcraft 175K (Jayco 17C clone) for some reason came from the factory with 14 inch wheels and tires (maybe they were short on 13 inch wheels or tires that day?). Anyway they fit fine in the wheel wells of the 17C, so I see no reason the 19H would have a problem, unless you don't have much clearance between the front and rear axles.
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Old 06-21-2012, 06:47 AM   #5
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If they will fit, you will be much happier when it is time to replace tires. 13" marathons are hard to find that haven't been on a shelf for a while. 14" tires are much more common.
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Old 06-21-2012, 07:13 AM   #6
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If they will fit, you will be much happier when it is time to replace tires. 13" marathons are hard to find that haven't been on a shelf for a while. 14" tires are much more common.
that was another reason i wanted to switch... i've got to get out the tape measure...
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Old 07-03-2012, 12:17 AM   #7
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did a few preliminary measurements on the 19H... plenty of room from rubbing on the fenderwell... but not so sure on the 3" clearance between the wheels.

i'm going over to measure a few 14" wheel setups in the next few days, so i'll report back on my findings... it might still be possible, with the proper wheel and tire combo... i also feel the 3" is a bit on the conservative side, but that's what i'm shooting for.


also, does anyone run heavy duty truck radials in place of ST bias tires?

i doubt i will do this, but on my light skiff, i run HD truck radials and have been VERY happy with the results... less harsh, they seem to run cooler, and i feel i get a lot more miles out of a set.... granted, you don't want them sitting in the sun, or still for long periods.... and i change them every two years, regardless of how they look... also, this is a very light boat... (around 1800-2000lbs total GTW)... no, the weight rating is not good for heavy rigs... but more than enough for that hewes.


hoping i can make a set of maxxis fit the 19H on 14" aluminum wheels......
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Old 07-03-2012, 04:48 AM   #8
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Actually, larger diameter tires = smoother ride. Which is less bumpy going through a parking lot, a shopping cart or a Radio Flyer wagon? A pebble will cause a shopping cart wheel to stop turning where the wagon wheel goes right over it. Just an analagy from everyday life.

My concern with changing wheels is the same as if you did it on your car or truck...clearance in the wheel well.
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Old 07-08-2012, 07:49 PM   #9
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It will not be easy to find heavy duty 14" truck tires. My old Ford Ranger came with 14" tires and I switched to 15's in order to easily get 6 ply tires for it.
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Old 07-09-2012, 07:52 AM   #10
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This is a really good thread, we were just talking about looking into changing the tires on the new X17Z in order to get a little more margin than the current tires offer.
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