Can I change from ST205 to ST225? - Escape Trailer Owners Community

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Old 04-29-2019, 04:10 PM   #1
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Can I change from ST205 to ST225?

Gonna replace tires on our 2017 21í Escape with a high lift kit. Is it OK to switch from an ST205 to an ST225?

What will that buy me?

Fred M.
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Old 04-29-2019, 04:21 PM   #2
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Gonna replace tires on our 2017 21í Escape with a high lift kit. Is it OK to switch from an ST205 to an ST225?

What will that buy me?

Fred M.

Fred,
I quick search of ST205 & 225R75-15 shows about 1ľ" larger diameter for 225, so that will lift your trailer half that, or 5/8". It may need a wider wheel to wear properly, though.

(IMO, a lot of trouble & cost for little gain.)
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Old 04-29-2019, 04:23 PM   #3
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Fred,
I quick search of ST205 & 225R75-15 shows about 1ľ" larger diameter for 225, so that will lift your trailer half that, or 5/8". It may need a wider wheel to wear properly, though.

(IMO, a lot of trouble & cost for little gain.)


Hmmm...didnít think about a wider wheel.
Thanks for your thoughts. Gonna decide tomorrow. Maybe Goodyear Endurance?
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Old 04-29-2019, 04:31 PM   #4
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While I like the Maxxis 8008's better than the original Carlisle tires, next set will probably be the Goodyear Endurance as the reviews are good and are made in USA.
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Old 04-29-2019, 05:06 PM   #5
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If you have the aluminum wheels the specs say it works:

Fits Tire Size:
225/75-15 and 205/75-15
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Old 04-29-2019, 06:28 PM   #6
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If you have the aluminum wheels the specs say it works:



Fits Tire Size:

225/75-15 and 205/75-15


Thanks Mike!
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Old 04-29-2019, 06:58 PM   #7
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With tandem axles and wider wheels, are you going to have more tire scrubbing? I donno.
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Old 04-29-2019, 08:28 PM   #8
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Goodyear Endurance ST205/75R/15 D range has $80 instant rebate till end of the year when you buy 4 tires at Sam’s Club.
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Old 04-29-2019, 08:43 PM   #9
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With tandem axles and wider wheels, are you going to have more tire scrubbing? I donno.


I may just stick to the ST205 tires.
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Old 04-29-2019, 08:45 PM   #10
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Goodyear Endurance ST205/75R/15 D range has $80 instant rebate till end of the year when you buy 4 tires at Samís Club.

Good to know!
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Old 04-29-2019, 08:51 PM   #11
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While it seems like it might be better to buy a load range D tire, is there a downside to it if the trailer weight indicates a C load range? Other than the D being heavier is there a downside to not fully inflating to 65 psi, which has been reported as causing a harsher ride for an Escape?
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Old 04-29-2019, 09:18 PM   #12
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Quote:
Originally Posted by Red Dog View Post
Gonna replace tires on our 2017 21’ Escape with a high lift kit. Is it OK to switch from an ST205 to an ST225?

What will that buy me?

Fred M.
You currently have Carlisle Radial Trail HD tires ST205/75R15 load range C. Your rims have a 6" width. Any of the following will fit.

Carlisle Radial Trail HD Dia Width Rim Max Load PSI Speed
6H04581 ST205/75R15 LRC 27.1 7.8 5.5 1820 50 81
6H04591 ST205/75R15 LRD 27.1 7.8 5.5 2150 65 81
6H04601 ST225/75R15 LRC 28.3 8.6 6 2150 50 81
6H04611 ST225/75R15 LRD 28.3 8.6 6 2540 65 81
6H04621 ST225/75R15 LRE 28.1 8.8 6 2830 80 81

If you went with ST225/75R15 E, the mounted diameter would increase by 1" and the max load would increase by 1010 lbs per tire. Two ST225/75R15 E would have a max load of 5660 lbs which is more than the load rating of the trailer. Other than increasing the max load rating, I can't see much reason to change the tire size.

On the Casita's, a lot of folks boosted the tire load rating from C to D to try to mitigate the "china bomb" syndrome. The higher load rated tires seemed to not blow out as much. The higher load rating had a higher pressure rating as well which really gave the Casita a good workout on bumps. That's why I went with LT tires - no blow outs, higher speed rating, and a softer ride.

I will probably go with these for my next set of tires.

https://www.discounttire.com/buy-tir...ler-ht/p/31657
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Old 04-29-2019, 09:59 PM   #13
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Another small consideration when thinking about larger tires is if you use x-chocks between the wheels the space will be reduced. I think it is already pretty tight. Also if you use the red Anderson levelers you will need to trim the one you put between the tires a little more.
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Old 04-29-2019, 10:29 PM   #14
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I just about stuck an Anderson leveler yesterday and it was trimmed to nearly the first hole. The Endurance 205s are a little greater diameter than the marathons were. Maybe shouldn’t be but it was pretty tight between the tandems. I was pulling them by myself and went a little too far forward. Running 62 lbs pressure on the E21 Classic.
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Old 04-29-2019, 11:01 PM   #15
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Another small consideration when thinking about larger tires is if you use x-chocks between the wheels the space will be reduced. I think it is already pretty tight. Also if you use the red Anderson levelers you will need to trim the one you put between the tires a little more.


You are quite right!
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Old 04-29-2019, 11:05 PM   #16
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I just about stuck an Anderson leveler yesterday and it was trimmed to nearly the first hole. The Endurance 205s are a little greater diameter than the marathons were. Maybe shouldnít be but it was pretty tight between the tandems. I was pulling them by myself and went a little too far forward. Running 62 lbs pressure on the E21 Classic.
Iowa Dave


Dave. Why donít you air them to 65 lbs?
Not questioning...Just asking for informational purposes.

Fred M.
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Old 04-29-2019, 11:50 PM   #17
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Fred
I like a little freeboard for heat buildup when I go out in the summer and they’ll gain about 4 or 5 lbs during the day. I know it says Max is 65 cold on the tire , but at 62 suspension of the trailer is easily adequate . It’s just the way I always ran tires clear back even though lots of things have changed.
Rules for tires according to Iowa Dave
1. Run all the trailer tires at the same inflation pressure
2. Check often
3. Try to get even loading side to side
4. Plenty of tread
5. I rotate tires in a circle using the spare in the rotation. Right Rear goes forward, Left rear goes on spare
6 Torque the nuts at 95 ft. lbs.
7. Check for sharp rocks in the tread every so often and pick them out with an old icepick, while laying on a cold concrete floor on a hot summer day. Nap is optional. Use knee pads for pillow. Rita will call when she misses you.
8. Load manometer for Fred to use at Osoyoos, oh wait that’s on another list,
New page.
Iowa Dave
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Old 04-30-2019, 12:36 AM   #18
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Quote:
Originally Posted by Iowa Dave View Post
Fred
I like a little freeboard for heat buildup when I go out in the summer and theyíll gain about 4 or 5 lbs during the day. I know it says Max is 65 cold on the tire , but at 62 suspension of the trailer is easily adequate . Itís just the way I always ran tires clear back even though lots of things have changed.
Rules for tires according to Iowa Dave
1. Run all the trailer tires at the same inflation pressure
2. Check often
3. Try to get even loading side to side
4. Plenty of tread
5. I rotate tires in a circle using the spare in the rotation. Right Rear goes forward, Left rear goes on spare
6 Torque the nuts at 95 ft. lbs.
7. Check for sharp rocks in the tread every so often and pick them out with an old icepick, while laying on a cold concrete floor on a hot summer day. Nap is optional. Use knee pads for pillow. Rita will call when she misses you.
8. Load manometer for Fred to use at Osoyoos, oh wait thatís on another list,
New page.
Iowa Dave


LOL! Thanks Dave!
See you in Osoyoos!

Fred M.
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Old 04-30-2019, 08:23 AM   #19
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Quote:
Originally Posted by Red Dog View Post
Gonna replace tires on our 2017 21í Escape with a high lift kit. Is it OK to switch from an ST205 to an ST225?

What will that buy me?

Fred M.
Hi: Red Dog... You'll certainly get a larger retirement!!! Alf
escape artist N.S. of Lake Erie
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Old 04-30-2019, 10:13 AM   #20
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With tandem axles and wider wheels, are you going to have more tire scrubbing? I donno.
To turn with tandem axles, the tires need to either distort laterally, or slide, or some combination.

The people who insist that Special Trailer (ST) tires are some magical things that work differently from all other tires generally insist that their sidewalls are stiffer, which means they must slide, which means scrubbing. If you have looked at tires on a turning trailer in the real world, you'll see that they do distort greatly (no surprise, given that they are all have tall sidewalls for their width), and also scrub noticeably (leaving black marks on the pavement) in very tight turns. A wider tire won't fundamentally change that, with the result being perhaps a bit more distortion and less scrubbing (if traction is improved enough), or perhaps more sliding and less distortion (in the unlikely case that lower contact pressure causes less traction)... or perhaps it won't matter. My guess is that they'll scrub a tiny bit less, but if they do scrub more, they'll be wearing across a wider tread face, so it won't likely be an issue; wider tires will likely even roll over onto their shoulders a little less, improving tire life.
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