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Thread: Ci foams? Tire venting?

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Old 04-08-2015, 03:20 PM   #1
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Default Ci foams? Tire venting?

I am wondering what peoples thoughts are on ci foams on the yxl. I am very impressed with them on the standard yeti and just cant find much info on this. Since i will be gluing the tires i would like to know if they are worth it. Also is anyone venting the tires with stock foams?
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Old 04-08-2015, 03:53 PM   #2
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Default Re: Ci foams? Tire venting?

Anything he makes is worth the money, and will be better than stock.

Granted, you are using for its intended purpose. He is an amazing vendor, and everything he does is cutting edge.

I would not hesitate to purchase anything from Crawler Inovations
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Old 04-08-2015, 08:09 PM   #3
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Nearing completion on my own build, and about ready to glue up the tires. I have the CI foams, and they are quite a bit firmer than the stock YXL kit foams. The CI foams appear to be well made, but I do wonder if they will have a negative impact on crawling, and a positive impact on general off and on-road handling. Seems like the tires would conform to rock shapes better with stock foams, but the CI foams would reduce the tendency to roll and wander through higher speed corners. I believe the CI foams are also closed cell, so they won't soak up water -- could be important depending on how you intend to use the YXL. Cool thing about this rig is you can do so many different kinds of things with it. Anybody with first hand experience with both stock and CI foams on various terrain?
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Old 04-08-2015, 08:22 PM   #4
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Default Re: Ci foams? Tire venting?

I've got 2 stage CI Memory Foams and Closed Cell Foams and they are completely different animals for completely different uses. Venting memory foams can be done on the sidewall, tread area or on the wheel itself. Closed cell foams must have the tread part of the tire vented in at least 2 locations (180 from each other). Memory foams soak up even the tiniest bit of water and never dry out completely unless you run them in a clothes drier air no heat (they don't like heat). They will stink and lose their bounce if not cleaned and dried on a regular basis. Closed cell foams will not soak up water and the vents will expel water. I suggest getting a set of each so you can crawl or race along as you desire.
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Old 04-08-2015, 09:17 PM   #5
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Default Re: Ci foams? Tire venting?

I run the closed cell foam in my yeti with the tread vented and the sidewall is so much firmer. So i think i will get the closed cell just for better handling. I plan to mainly drive faster and very little crawling. Still interested in hearing from somebody using them also. Thanks
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Old 04-08-2015, 10:21 PM   #6
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Default Re: Ci foams? Tire venting?

There website say there for the BFG's which is a smaller tire compared to the Kit Falkens. Do they fill the Falken tire correctly.
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Old 04-08-2015, 10:44 PM   #7
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They appear to fit mine (Falkens) well.
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Old 04-09-2015, 10:29 AM   #8
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Default Re: Ci foams? Tire venting?

For crawling, at any scale, you want the tire to do the work. New 1:1 scale tires rarely deflate down to no psi anymore. The new tires compounds are more "sticky" and the tread patters do the work. Same with the yeti, let the tread pattern do the work. When a tire conforms, or collapses, the tread pattern is altered. Space between the lugs disappears. That's not what you want.

Just my opinion, which is why the CI inserts will be glued on my new rig tonight.
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