Tire choices for a Rallycross Jeep - JeepForum.com
 
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post #1 of 6 Old 02-08-2016, 06:12 PM Thread Starter
comptiger5000
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Tire choices for a Rallycross Jeep

I'm looking at picking up a dedicated set of tires for the ZJ to use when running it at rallycross events. They're gonna be 225/75R16s, and at this point, I'm kinda torn between Dynapro MTs and Geolandar MTs.

As far as functional needs for the tires, they need to work on gravel, dry dirt, mild, shallow mud and sticky clay dirt/mud (nothing deep though). They also need to do it at speeds up to 50-ish mph and provide not only good forward drive, but good cornering grip. And they need to not pack up too badly in the thick, sticky stuff when going through slow, tight corners (hence looking at M/Ts).

The biggest quirk of the requirements is that I can't run them aired down (figure 40 psi), due to speed and the associated the risk of de-beading (which can end in a rollover if it happens at speed) if the course starts to develop ruts and I slide into one.

Noise, ride comfort and treadwear are completely irrelevant, as the most pavement they'll ever see is a quick 5 mile lunch run during an event (they'll be swapped on when I arrive in the morning and pulled off before I leave). They also don't need to work in sub-freezing weather or in the snow, as I can just run the winter events on my snow tires.

What do you guys think would be the better tire for that use-case? I'm open to suggestions beyond the tires mentioned above if you think something else would be the better option. I'm currently leaning towards the Hankooks just because they're a little cheaper (although the Yokohamas are a bit lighter and won't be quite as stiff, being load range C vs E).

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post #2 of 6 Old 02-08-2016, 07:13 PM
PhulesAu
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Dynapros work very well for me!!
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post #3 of 6 Old 02-08-2016, 07:42 PM
rjbruzan
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X2 on the Dynapros.

Ron

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post #4 of 6 Old 02-08-2016, 07:54 PM
rjbruzan
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Dynapros
They are real sticky and will climb walls sideways.
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post #5 of 6 Old 02-08-2016, 08:05 PM
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post #6 of 6 Old 02-09-2016, 07:21 AM Thread Starter
comptiger5000
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Alright, sounds like I'll save the few $$$ and get the Dynapros. KO2s are slightly more expensive and I don't think they'll clear out well enough when the course gets sticky (that's why I passed on the much cheaper grabber AT2s as an option).
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