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10-30-2016, 07:26 AM
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#1
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Senior Member
Join Date: Apr 2016
Location: Madisonville, ky
Posts: 116
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Towmax ST2
http://towmaxtires.com/
Anyone using the new all-steel Towmax?
STRll
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10-30-2016, 09:30 AM
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#2
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Site Team
Join Date: Feb 2014
Location: W. Texas
Posts: 17,660
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Re: Towmax ST2
All steel? What did I miss?
On another note; click on the tab in the upper right corner of the page that the link takes you to "TBC Brands" and note the various tires this company makes....just for your own information 
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10-30-2016, 10:31 AM
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#3
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Senior Member
Join Date: Mar 2014
Location: Las Cruces
Posts: 4,665
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Re: Towmax ST2
Quote:
Originally Posted by Bugbitten
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A lot of people use the all steel version when running Towmax. As soon as they blow, you're running on all steel, or aluminum. 
__________________
Brent
2013 Alpine 3500RE
2019 Silverado 2500HD Duramax
U.S. Air Force Retired (25 yrs)
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10-30-2016, 11:20 AM
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#4
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Senior Member
Join Date: Jul 2014
Location: Nevada
Posts: 2,695
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Re: Towmax ST2
Reminds me of airlines in economic trouble rebranding themselves with new airplane livery and pilot uniforms just before bankruptcy.
__________________
 Desert185 🇺🇸 (Retired Chemtrail vendor)
-Ram 2500 QC, LB, 4x4, Cummins HO/exhaust brake, 6-speed stick.
-Andersen Ultimate 24K 5er Hitch.
-2014 Cougar 326SRX, Maxxis tires w/TPMS, wet bolts, two 6v batts.
-Four Wheel 8' Popup Camper.
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10-30-2016, 10:36 PM
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#5
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Senior Member
Join Date: Nov 2012
Location: Fruitland
Posts: 3,357
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Re: Towmax ST2
After checking the site information. I read that they have a nylon over lay, what ever that means, it is not steel. Not sure where the all steel information came from.
__________________
2013 24RKSWE (27ft TT) Cougar 1/2 ton series SOLD 10-2021
2013 Ford F350 4x4 CC 6.7 engine, 8 ft bed, 3.55 rear end, lariat package
Retired from Oregon State Police in 2011 than worked another 9.5 years as a small town traffic cop:
As of 05-2020, I am all done with 39 years total police work. No more uniforms for me.
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10-31-2016, 01:59 PM
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#6
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Senior Member
Join Date: Feb 2010
Location: Taylors, SC
Posts: 3,031
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Re: Towmax ST2
Quote:
Originally Posted by Ken / Claudia
After checking the site information. I read that they have a nylon over lay, what ever that means, it is not steel. Not sure where the all steel information came from.
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This may help.
http://www.miamiinjurylawyersblog.co...ortant-ti.html
Another innovation is the Nylon wedge.
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10-31-2016, 02:21 PM
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#7
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Senior Member
Join Date: Apr 2016
Location: Madisonville, ky
Posts: 116
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Re: Towmax ST2
According to TBC the STR ll has only been in use since late 2015. Radial steel up the sidewall. It has only been available as a replacement tire not oem. So has anybody bought and used the STR ll?
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11-01-2016, 02:47 PM
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#8
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Senior Member
Join Date: Nov 2012
Location: Fruitland
Posts: 3,357
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Re: Towmax ST2
Thanks CW.
Quick question about these all steel tires. I thought the R on a tire means radial and that means steel belts. Are these steel belts a new design on this tire. I may not be the only one who does not know. Might be helpful when looking at new tires.
__________________
2013 24RKSWE (27ft TT) Cougar 1/2 ton series SOLD 10-2021
2013 Ford F350 4x4 CC 6.7 engine, 8 ft bed, 3.55 rear end, lariat package
Retired from Oregon State Police in 2011 than worked another 9.5 years as a small town traffic cop:
As of 05-2020, I am all done with 39 years total police work. No more uniforms for me.
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11-02-2016, 07:50 AM
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#9
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Senior Member
Join Date: Feb 2010
Location: Taylors, SC
Posts: 3,031
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Re: Towmax ST2
Yes the "R" in a tire's size description (ST225/75R16E) identifies it as a radial design.
All tires have a short list of their basic building materials listed on their sidewalls. That includes sidewall materials.
Here is a picture I took of a tire's materials description.
http://www.irv2.com/photopost/showfull.php?photo=27063
Most steel cased tires used for RV trailer service right now are 16". However, some 15" ones will be on the market soon.
Most trailer tires have a rim width range that could look like this; 6"-7" with the measuring rim being 6.5". To date all of the 16" steel cased tires have a single "approved" rim size of 6.5". Some of the newer brands are so serious about it they are putting the required rim width on the tire's sidewall. Here is a picture of one I took at a RV show earlier this year.
http://www.irv2.com/photopost/showfull.php?photo=29709
No savvy tire installer would ever mount a tire marked for a 6.5" wide rim on anything other than the required 6.5" wide rim.
A tire's strength is in its casing and the amount of tire inflation it can sustain. Belts, overlays, sidewall inserts and treads are all durability items, not to be confused with load strength.
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11-02-2016, 09:11 AM
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#10
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Senior Member
Join Date: Jul 2014
Location: Nevada
Posts: 2,695
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Re: Towmax ST2
Quote:
Originally Posted by Bugbitten
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They advertise a nylon overlay on 15" and 16" sizes. All steel?
Steel belts are not a new feature on ST tires.
http://www.maxxis.com/catalog/tire-1...al-m8008#sizes
__________________
Desert185 🇺🇸 (Retired Chemtrail vendor)
-Ram 2500 QC, LB, 4x4, Cummins HO/exhaust brake, 6-speed stick.
-Andersen Ultimate 24K 5er Hitch.
-2014 Cougar 326SRX, Maxxis tires w/TPMS, wet bolts, two 6v batts.
-Four Wheel 8' Popup Camper.
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11-02-2016, 09:26 AM
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#11
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Senior Member
Join Date: Nov 2012
Location: Fruitland
Posts: 3,357
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Re: Towmax ST2
Thanks again CW.
I checked the factory tires on my trailer Power King- tow max. ST225/75R15
and they have printed on sidewall 2 poly/2 steel/1 nylon. I did not recheck the date but believe it is 2012 with different months of that year.
I am guessing the new style mentioned on the post has steel belts that are different than there older style. But, they are not all steel belts. Still have nylon and maybe poly also.
__________________
2013 24RKSWE (27ft TT) Cougar 1/2 ton series SOLD 10-2021
2013 Ford F350 4x4 CC 6.7 engine, 8 ft bed, 3.55 rear end, lariat package
Retired from Oregon State Police in 2011 than worked another 9.5 years as a small town traffic cop:
As of 05-2020, I am all done with 39 years total police work. No more uniforms for me.
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11-02-2016, 11:04 AM
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#12
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,974
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Re: Towmax ST2
I think there "might" be some confusion in "types of plys" being discussed. There are "body plys" (usually polyester, Dacron or nylon) and "tread plys" (usually steel in radial tires) which are covered by a "nylon ply" which helps prevent the steel belts from shifting and separating.
I don't know of any LR C, D, or E (6, 8 or 10 ply) "all steel ply" tire that's marketed for ST use. All have polyester "sidewall plys". Some Goodyear truck tires have started using Kevlar as an additional ply to help strengthen the sidewall for off-road protection, but even they don't have "steel sidewall belts".
ADDED: This is a quote from the Tire Rack website. http://www.tirerack.com/tires/tires....=Towmax+STR+II In it, they describe the STRII composition this way: "The tire's internal structure features twin steel belts (Load Range D & Load Range E-sized tires are reinforced with a nylon cap ply that further stabilizes the tread to increase durability). The Towmax STR II's rounded profile and polyester cord body are designed to help smooth out the trailer's ride." As you can see, the "sidewall plys" are polyester.
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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11-02-2016, 06:03 PM
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#13
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Senior Member
Join Date: Feb 2010
Location: Taylors, SC
Posts: 3,031
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Re: Towmax ST2
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12-10-2016, 04:33 PM
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#14
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Senior Member
Join Date: Apr 2016
Location: Madisonville, ky
Posts: 116
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The ST ll is supposed to be all steel sidewall like the Sailun 637.
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12-10-2016, 10:01 PM
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#16
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Senior Member
Join Date: Aug 2013
Location: Oregon
Posts: 783
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__________________
Jeff & Jan - Retired & Full-timing since 2013
2019 Ram Big Horn 3500 Aisin 4x4
2012 Alpine 3450-RL
Double Coin 235/75R-17.5/16 J rated 125lb
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12-11-2016, 01:43 PM
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#17
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Site Team
Join Date: Feb 2014
Location: W. Texas
Posts: 17,660
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Looking at the towmax website the weight for a 225 75r15 LRE is 29 lbs. The weight for a Carlisle HD in the same size is 36 lbs. An increase of 24%+ in weight for the Carlisle; hmmmm................ Wonder what the Towmax skipped??
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12-18-2016, 09:36 AM
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#18
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Senior Member
Join Date: Dec 2015
Location: Ocean Isle Beach
Posts: 1,431
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Quote:
Originally Posted by sourdough
Looking at the towmax website the weight for a 225 75r15 LRE is 29 lbs. The weight for a Carlisle HD in the same size is 36 lbs. An increase of 24%+ in weight for the Carlisle; hmmmm................ Wonder what the Towmax skipped??
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Bead and side wall??? "During a visit to China in April 2015, Van Ormer saw many new lines of ST products, but says he is aware of only one manufacturer that has “truly changed” the technology of the ST tires. That manufacturer is Carlstar Group LLC, formerly CTP Transportation Products and before that, Carlisle Transportation Products. “With the RH (radial) and LH (bias) trailer tires, they beefed up the bead and sidewall packages so that few others can compete quality-wise with them,” Van Ormer says.".
__________________
2022.Montana 3855 BR
2019 F350 6.7 4X4 DRW
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12-19-2016, 05:42 AM
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#19
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Senior Member
Join Date: Jul 2013
Location: Liberty, Texas
Posts: 5,028
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I've looked at the link to the new Towmax STR and don't see where it says it is all steel, has a steel wire carcass, or any steel in the sidewall. Maybe I missed it. New tread design looks like Maxxis to me, open grooves between the treads all the way around.
If someone ever builds a steel carcass tire like Sailun and Goodyear in load range E they should get plenty of customers.
__________________
2018 Ram 3500 Laramie CC DRW LWB 4X4 Cummins Aisin 3.73
Reese Goosebox 20K
2018 Heartland Landmark 365 Oshkosh
2008 Bigfoot 25C9.4 LB Cabover
2023 CanAm Defender SXS
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12-19-2016, 10:58 AM
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#20
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Senior Member
Join Date: Feb 2010
Location: Taylors, SC
Posts: 3,031
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Quote:
Originally Posted by gearhead
If someone ever builds a steel carcass tire like Sailun and Goodyear in load range E they should get plenty of customers.
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Michelin & Bridgestone have them, they are LT designed. Their maximum load capacity is 3042# at 80 PSI. Michelin builds them in 4 sizes.
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