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Thread: New Ultra w Hyraxs...What foams?

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Old 07-06-2020, 06:00 PM   #1
Quarry Creeper
 
Join Date: Dec 2013
Location: NoVa
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Default New Ultra w Hyraxs...What foams?

I have a new Ultra with proline Hyraxs tires. The proline foams seem too soft for an 8.5lb truck. I know the Hyraxs tires are popular, just wondered what foams people are running.
Recommendations appreciated. I did go thru the CI calculator.
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Old 07-06-2020, 08:38 PM   #2
Quarry Creeper
 
Join Date: May 2019
Location: Knoxville
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Default Re: New Ultra w Hyraxs...What foams?

I used some CI Lil Nova's inside the Predator compound Hyrax's. I used the standard inner and medium outer. They seem to do well and keep the tire from rolling over on the sidewall.
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Old 07-07-2020, 08:38 AM   #3
Quarry Creeper
 
Join Date: Jul 2019
Location: Torrance, CA
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Default Re: New Ultra w Hyraxs...What foams?

Standard inserts for me are the Proline dual foams. Work well with both my Hyrax and BFG Krawlers.
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Old 07-07-2020, 09:16 AM   #4
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Join Date: May 2007
Location: Taylors Falls just hanging with the MNRCRC crew.
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Default Re: New Ultra w Hyraxs...What foams?

I'm running CI lil Nova's soft front and rear without the comp cut. Seem to be working well on my 5.3 pound comp scaler. I also run both over/drive and under/drive which takes away rear wheel speed and traction.
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