M4wd&Fabrications

Projects place => Tech => Topic started by: M4wdFab on August 20, 2014, 09:32:33 AM

Title: U4 tire tech
Post by: M4wdFab on August 20, 2014, 09:32:33 AM
Matt and I are planning a sizable tire expenditure for the rest of the season / KOH 2015

Looking at Nitos
KR2
KRT



really im stuck on stick with the KRT's or go KR2.  they have a little more trophie truck built into them, not sure the rock crawling is there. 

about the same cost. 
Title: Re: U4 tire tech
Post by: mr.mindless on August 20, 2014, 09:46:18 AM
My Toyos are sad they didn't make the list.

Nittos all the way if the Toyos are off the table. No debate IMO.
Title: Re: U4 tire tech
Post by: Ryan on August 20, 2014, 09:46:48 AM
Here is a link to see the difference. Side lugs on the KR2 are supposed to help with steering..

http://www.bfgoodrichracing.com/category/race-tires/off-road-race-tires/desert-racing/
Title: Re: U4 tire tech
Post by: JEEPWERX on August 20, 2014, 12:58:20 PM
Falken?
They are promoting ultra 4 pretty hard!
Title: Re: U4 tire tech
Post by: GBR928 on August 20, 2014, 03:03:43 PM
I want KR2s
Title: Re: U4 tire tech
Post by: M4wdFab on August 20, 2014, 03:38:19 PM
ya they look good.  not sure i should stick with KRT's though.  KR2 look even more useless for east coast wetness


calling arie  :)

http://www.pirate4x4.com/forum/axles-tires-wheels-sale/1782026-short-course-tires.html   


Kentucky tires :)
Title: Re: U4 tire tech
Post by: mr.mindless on August 20, 2014, 03:50:06 PM
KR2 look even more useless for east coast wetness


o_O

they look like twice the tire and actually have some sidewall tread...
Title: Re: U4 tire tech
Post by: GBR928 on August 21, 2014, 08:34:32 AM

KR2 look even more useless for east coast wetness


o_O

they look like twice the tire and actually have some sidewall tread...

X2 lol

KRTs are not an east coast tire lol. Gotta look at carcass and plys in KR2 vs KRT.

Smike I've been thinking..., I'd buy tire balls and run old KRTs before I bought new tires to run without tire balls.....


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Title: Re: U4 tire tech
Post by: mr.mindless on August 21, 2014, 09:04:36 AM
with the price of tire balls, I'd buy innerairlocks before I bought tire balls. Running those at 40PSI ought to prevent pinch flats and most of the rim damage you and I have been seeing as well.

I have not picked up the phone to talk to them yet but no reply to my E-inquiry
Title: Re: U4 tire tech
Post by: GBR928 on August 21, 2014, 09:26:35 AM
Lady who answered phone at 1800RACEBFG was no help explaining key differences between KR2 and KRT..., engineering is supposed to call me back....


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Title: Re: U4 tire tech
Post by: GBR928 on August 21, 2014, 09:29:51 AM

with the price of tire balls, I'd buy innerairlocks before I bought tire balls. Running those at 40PSI ought to prevent pinch flats and most of the rim damage you and I have been seeing as well.

I have not picked up the phone to talk to them yet but no reply to my E-inquiry

Tire balls or inner air lock..., I think smike should have some sort of run flat capability when out at the hammers especially with no on board spare...


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Title: Re: U4 tire tech
Post by: M4wdFab on August 21, 2014, 09:35:38 AM
Tom wayes ran 24miles on a method wheel.  I figure i can run 40 on a kmc :)
Title: Re: U4 tire tech
Post by: GBR928 on August 21, 2014, 10:46:18 AM

Tom wayes ran 24miles on a method wheel.  I figure i can run 40 on a kmc :)

Just better hope you're in the desert like he was and not in the hammer trails when it happens! Makes less work for use remote pit guys who will have to manhandle a mangled wheel off of bent studs and replace hubs....


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Title: Re: U4 tire tech
Post by: M4wdFab on August 21, 2014, 11:38:50 AM
im not at all interested in inner air locks
Title: Re: U4 tire tech
Post by: jacel86 on August 21, 2014, 11:48:05 AM
Not that it matters much but nitto = toyo. Same parent company.
Title: Re: U4 tire tech
Post by: matt on August 21, 2014, 12:19:12 PM
Why not maxxis?
Title: Re: U4 tire tech
Post by: GBR928 on September 16, 2014, 05:38:58 PM
http://www.race-dezert.com/classifieds/index.php?ct=wheeltire&md=details&id=79639

Sucks they are red labels though. PM'd anyway


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Title: Re: U4 tire tech
Post by: GBR928 on September 16, 2014, 05:39:37 PM

Why not maxxis?

My sticky compound Trepadors wear too fast racing


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Title: Re: U4 tire tech
Post by: Ryan on September 16, 2014, 08:07:10 PM
I have been converted to the Nitto tires, For wear and traction in dirt.
Title: Re: U4 tire tech
Post by: SlvrJK on September 16, 2014, 08:39:44 PM
love my nittos
Title: Re: U4 tire tech
Post by: M4wdFab on September 17, 2014, 02:33:51 PM
ya, Nittos will be ordered.  Probably early next year.  no hurry now. 
Title: Re: U4 tire tech
Post by: M4wdFab on September 17, 2014, 03:58:27 PM
discount tire is now 434 a tire shipped showing none in stock anywere.  discount ends 9/20
Title: Re: U4 tire tech
Post by: mr.mindless on July 20, 2015, 06:53:18 PM
Funny, this thread is the 6th hit on google for a no-quotes search on "u4 inner air lock"

with no other useful results at all.
Title: Re: U4 tire tech
Post by: M4wdFab on July 20, 2015, 06:56:22 PM
yes we are at that level.


why i have given up on searching for answers 95% of the time. 
Title: Re: U4 tire tech
Post by: mr.mindless on July 20, 2015, 07:21:04 PM
a quick search on alibaba and amazon for farm truck solutions got me 2 things: a cheap source and bad news

cheap source (among many others, but lowest min qty): http://www.alibaba.com/product-detail/Custom-Rubber-Playground-Ball-Kickball-of_797648507.html
bad news: .5-1psi rating on a name-brand unit. I don't think that's gonna cut it to help anything. http://www.amazon.com/Voit-Playground-Balls-Red-5-Inch/dp/B001G1LIJY/ref=sr_1_13?s=sports-and-fitness&ie=UTF8&qid=1437434235&sr=1-13&keywords=kickball
Title: Re: U4 tire tech
Post by: M4wdFab on July 20, 2015, 07:32:25 PM
you dont want the textured ones

need to put slime in the tire so they slip around and dont make heat.


PSI rating is meaningless the way they will be used...
Title: Re: U4 tire tech
Post by: mr.mindless on July 20, 2015, 07:35:47 PM
makes sense. smooth options didn't seem common. maybe different searches would be more fruitful.

I just decided to order the inners. if we don't find another good option before I'm swapping tires I'll run 'em and see what difference they make.
Title: Re: U4 tire tech
Post by: M4wdFab on July 20, 2015, 08:09:04 PM
boo. 
Title: Re: U4 tire tech
Post by: Ryan on July 20, 2015, 08:49:16 PM
I have a person in China that takes care of my shipping and receives things to ship to me. Whatever you guys want we can get coming. She talks to the factories to get the best prices and takes care of the details.

alibaba.com is the best place to find things.

Will rubber playground balls hold up to the demands of racing on a flat?
Title: Re: U4 tire tech
Post by: mr.mindless on July 20, 2015, 09:15:42 PM
Probably not. We need to find the most HD smooth rubber anythings that we can.


Tapatalking in traffic
Title: Re: U4 tire tech
Post by: CJ on July 20, 2015, 10:10:34 PM
What about IV bags? Similar shape to Tire balls
Title: Re: U4 tire tech
Post by: M4wdFab on July 20, 2015, 10:33:17 PM
interesting idea cora but im sure not rated for any pressure and medical = 100X cost

forgot to mention ATV guys use the walmart balls thats where i got the info from.  but they do run in the 3-5 PSI tire range
Title: Re: U4 tire tech
Post by: jacel861 on July 20, 2015, 11:24:31 PM
Probably not. We need to find the most HD smooth rubber anythings that we can.


Tapatalking in traffic
Implants.
Title: Re: U4 tire tech
Post by: Ryan on July 20, 2015, 11:36:12 PM
Tire Boobs         8)
Title: Re: U4 tire tech
Post by: M4wdFab on July 20, 2015, 11:36:25 PM
too heavy


walmart kick balls are the only way to go at less than a 1$ each from distributor


or from the pirate, after reading 20 lame threads about bs search fucker

This stuff is old as shit.

Where I come from, smugglers filled their armored 4x4 tires with 15/20 bicycle tubes. When the cops shot at the tires the bullet would kill just a few, the other tubes would keep the tire from collapsing.
Title: Re: U4 tire tech
Post by: mr.mindless on July 20, 2015, 11:46:31 PM
I could see innertubes working


Tapatalking in traffic
Title: Re: U4 tire tech
Post by: CJ on July 21, 2015, 10:48:37 AM
Tire Boobs         8)

I could totally market that!
Title: Re: U4 tire tech
Post by: jaysenodell on July 21, 2015, 11:04:18 AM
if someone gets a design I'm sure Ryan can find a cheap manufacturer.


And it shouldn't be too hard to get someone to draw a boob shaped bag in cad.


Just out of curiosity, doesn't anyone use a mid-density foam for this? seems that it would be better than pneumatics. I'm not an expert by any stretch, but it would seem that a little goop to adhere foam to rim or tire would prevent most of the tire ball throwing issues. And I'd think the foam would last a bit longer as it wouldn't really care about punctures. Moisture could be an issue though...
Title: Re: U4 tire tech
Post by: M4wdFab on July 21, 2015, 11:11:14 AM
heat / abraision / wear  with foam. 

ATV guys tried Pool noodles, dust in miles on flat. 

weight of a foam that can support 25psi is also way to heavy




http://www.hedstrom.com/products/balls-2/hedstrom-playballs 
Title: Re: U4 tire tech
Post by: M4wdFab on July 21, 2015, 11:18:36 AM
160 for 140$ 5" 

https://www.homewarewholesale.com/rubber-basketball 
Title: Re: U4 tire tech
Post by: JEEPWERX on July 21, 2015, 08:11:51 PM
Did you check alibaba?

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Title: Re: U4 tire tech
Post by: Ryan on July 21, 2015, 09:55:36 PM
Shipping from US?