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Tires and Wheels Want to know what tire to use? Have a wheel fitment question? Need to figure out which wheel stud to use with those new drag wheels? Post all of your tire and wheel related questions here.

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Old 12-28-2016, 11:06 AM   #21
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Originally Posted by 46addict View Post

The language here is confusing. There is a warning on the sidewall that mentions "For drag racing only. Not for highway use" so if I were pulled over going to/from the track I could possibly get cited? But the tires are listed under the DOT product line in MTs website.
Agreed - confusing. IDK - about getting cited
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Old 12-28-2016, 11:19 AM   #22
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???

If they are DOT they should be street legal. I know MT says not to use them as a "Street Tire" or something similar.
Though it is listed in the DOT section it is specified specifically for Drag racing only. See the web spec.
http://www.mickeythompsontires.com/s...treetRadialPro

Hoosier also offers DOT pros however they clearly state that their tires that fall under this classification are for racing purposes only and not meant for street running. Read the warnings under the Quick Time DOTS, Quick Time Pro DOT's, and DOT Drag Radials on their PDF after killing someone. It just better not be one of my loved ones.

http://hoosiertire.com/assets/Drag%2...1%2016%20b.pdf

Several street classes have banned the use of Hoosier DOT pros because they do not comply with being street legal.

Quoting the manufacturer. I'm not here to split hairs on technicality in writing. Leave that to a lawyer in the court room for the guy who chooses not to heed these warnings and finds himself in an accident with these tires on his vehicle that are not recommended for street driving.
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Old 12-28-2016, 11:29 AM   #23
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yea, I see that, I wonder how much of that is the company "CYA"
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Old 12-28-2016, 11:39 AM   #24
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^^^ yes you can get cited or towed- (first hand exp.) and the dot rating is for classes that require dot certified tires (grooves/tread so it isn't ruled a true slick)
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Old 12-28-2016, 11:51 AM   #25
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And when the trooper points at the tire reads the words"not for highway use" don't reply by saying well this isn't a highway it's just a normal road; doesn't fly real far.
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Old 12-28-2016, 06:17 PM   #26
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Quote:
Originally Posted by stkjock View Post
yea, I see that, I wonder how much of that is the company "CYA"

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Originally Posted by redfirepearlgt View Post
Though it is listed in the DOT section it is specified specifically for Drag racing only. See the web spec.
http://www.mickeythompsontires.com/s...treetRadialPro

Quoting the manufacturer. I'm not here to split hairs on technicality in writing. Leave that to a lawyer in the court room for the guy who chooses not to heed these warnings and finds himself in an accident with these tires on his vehicle that are not recommended for street driving.
Seeing as how the Street R and the Radial Pros are made of the same compound, I don't see how the latter would be more dangerous on the street. Neither would be safe to drive in the rain and I wouldn't do it myself.

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Originally Posted by bunits19714
And when the trooper points at the tire reads the words"not for highway use" don't reply by saying well this isn't a highway it's just a normal road; doesn't fly real far.
Yeah I am not one to make smartass comments to a cop. My plan is to keep probable cause to a minimum if I ever need to drive with these on the street.
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Old 12-28-2016, 08:04 PM   #27
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^^^ I am assuming since MT professes the R series to be street legal, it has nothing to do with the compound and everything to do with the tread pattern which the pro radial completely lacks short of a couple of notches. The Radial Pro essentially has no tread at all. The ET Street R does and likely to minimum specification since MT states they are.

Go to the MT website, get the phone number, call and talk to Mickey Thompson about it. They can give you the specifics as to why. I can only tell you what the web site datasheets specify.

It's not worth the risk of getting into an accident with non street compliant tires on the car with data sheets the clearly specify "For RACING PURPOSES ONLY", or "NOT RECOMMENDED FOR STREET USE" in the technical data sheets. An injury lawyer would have a hay day with that regardless of who is at fault. Your insurer may not smile kindly on it either. Just food for thought. Some rich stock broker, hedge fund manager, or Goldman Sachs executive may be able to absorb a hit like that, but average Joe's like me sure as hell can't.
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Old 12-29-2016, 09:09 AM   #28
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Isn't the main purpose of having raised treads is to dispel water? When it's raining the track will be closed so driving in the rain is a non issue for me anyway.
Unless I'm overlooking something very obvious, I don't see how having these on will cause an accident without reckless driving on my part. I understand drag radials have a much narrower temperature range than street tires so there won't be any tomfoolery coming from me with either the Street R or Radial Pro. I will find some time to call MT and see what they say.
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Old 12-29-2016, 09:42 AM   #29
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the belting material maybe different as well between the tires. with the "not highway use" tire having a softer & less puncture resistant material (just a guess on my part)

FWIW - I have a friend with a 750whp GN that runs the 275/50/15 Pro 24/7/365, it's not his DD of course, IIRC he does replace the tires every year or so, he feels they lose grip after a year...
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Old 12-29-2016, 10:13 AM   #30
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Quote:
Originally Posted by 46addict View Post
Isn't the main purpose of having raised treads is to dispel water? When it's raining the track will be closed so driving in the rain is a non issue for me anyway.
Unless I'm overlooking something very obvious, I don't see how having these on will cause an accident without reckless driving on my part. I understand drag radials have a much narrower temperature range than street tires so there won't be any tomfoolery coming from me with either the Street R or Radial Pro. I will find some time to call MT and see what they say.
Yes, that is how I understand it. If it were merely for traction Indy 500 tires and Dragsters would not be smooth. Further if you watch Formula 1 racing where they actually run in the rain, you will see that when they change to a rain tire they have grooves in them for the syping (sp?) effect.The more contact made by the rubber to the road (contact patch) the better the traction will be. Without tread, water cannot be displaced. This groove in the tire allows water to displace from the direct contact areas. Without this the water only has the outside edges of the tire to push to and creates a water cushion, which is never a good thing unless you are a hover craft. After the water moves into the tread area it has to be removed and that is where additional engineering of how the tread lays out comes into play. Summer tires will have a different tread pattern than all season radials, and snow tires. Compound also comes into play based on how it reacts with temperature.
There is a great amount of information on tires on the Mickey Thompson website as well as other tire websites. It only takes googling it to learn more about it. My explanation is a paraphrase of actual theory so it may be slightly inaccurate in areas from an engineering point of view, but the basic concepts are there. Hope that helps.

Discount Tire direct has a great glossary as well as a tire size calculator I use quite a bit. The glossary link is posted below.

http://www.discounttiredirect.com/di...nfoTireTerm.do
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Old 12-29-2016, 11:03 AM   #31
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Quote:
Originally Posted by stkjock View Post
the belting material maybe different as well between the tires. with the "not highway use" tire having a softer & less puncture resistant material (just a guess on my part)

FWIW - I have a friend with a 750whp GN that runs the 275/50/15 Pro 24/7/365, it's not his DD of course, IIRC he does replace the tires every year or so, he feels they lose grip after a year...
I assume they lose their grip after a number of heat cycles, even if tread depth (or should I say notch depth) is still there.
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Old 12-29-2016, 02:27 PM   #32
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Quote:
Originally Posted by 46addict View Post
Isn't the main purpose of having raised treads is to dispel water? When it's raining the track will be closed so driving in the rain is a non issue for me anyway.
Unless I'm overlooking something very obvious, I don't see how having these on will cause an accident without reckless driving on my part. I understand drag radials have a much narrower temperature range than street tires so there won't be any tomfoolery coming from me with either the Street R or Radial Pro. I will find some time to call MT and see what they say.

My very first accident as a driver resulted in bent suspension components on the family Buick: I drove around a familiar corner at a normal, conservative rate of speed, and lost control when the tires slid in an unseen patch of water. Only went a few feet off-course, but it was over the curb. It's just an example of how even non-reckless driving can bite you in the ass, given the right (wrong) not-out-of-the-ordinary circumstances.
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Old 01-10-2017, 03:13 PM   #33
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I just got off the phone with MT and the rep mentioned Pro Radials are not designed withstand sustained high temperatures (i.e. highway cruises). That along with the lack of tread is why they are not labeled for street use. We didn't get into tech specifics because that was enough to answer my question.

Makes me wonder how guys at Drag Week make the cruise on wrinkle wall slicks/radials with no catastrophes.
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Old 01-11-2017, 12:09 PM   #34
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The pro's have just deep enough "grooves" to get the DOT stamp. as soon as they have been driven more than a few miles, they likely are no longer legal from a tread depth perspective.
My regular MT ET Street R's have only a "B" rating for temperature so I would imagine the pros would be even worse.
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