Are they 16" or 18" o.d.?
CK5
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What size PVC are runflats made from?
- Thread starter thatK30guy
- Start date
Someone here has got to be running a set of PVC's so if they have a set on or off they should know.
I was checking prices out for them and at $50 a pop, why pay that when you can DIY?
I was checking prices out for them and at $50 a pop, why pay that when you can DIY?
mr250twostroke
1/2 ton status
Run flats? Interesting...
What? Never heard of them? Check them out below...
http://www.trailworthyfab.com/H1-Hummer-Wheel-Run-Flats/
mr250twostroke
1/2 ton status
I've heard of them, have a couple sets actually (rubber @ magnesium) . Never heard the PVC ones called anything but inner bead locks though.
According to the website clicky below, it shows the 16" o.d. pipe to have a 14.940 i.d. at .500 thick.
The 18" o.d. pipe is 16.809 i.d. at .562 thick.
http://flexpvc.com/PVCPipeSize.shtml
The 18" o.d. pipe is 16.809 i.d. at .562 thick.
http://flexpvc.com/PVCPipeSize.shtml
Well, well, yeah, I see what you're saying but I've read and heard others call them runflats because they still allow the bead to remain seated so a 16.5" tire can still run flat without popping.
Man I prolly got about 10 feet of runflats out behind the shop at work 
What size? I think they need to be 6.5" wide to fit a standard H1 wheel. Care to cut one and see if it'll fit inside an H1 wheel if you have one?
I dont have any h1s or know anyone with them... but If you remind me tomorrow morning Ill see what sizes of pipe we have outside.
I'm gonna guess the PVC is the 16" diameter piece. If you look closely at the Trailworthy Fab pic, you can see a bevel on the inside of the runflat.
"run flat" was the military term for the original rubber or mag inserts used by them, because of the raised center, if a tire were shot out, went flat etc you could continue to run on it till out of harms way. The factory run flats are no good for "our" uses because you can not air down with out the inside of the tire constantly contacting the raised center of it. That is why you often hear of people using "cut down" rubber or mag inserts 
With that being said, the width needed for a PVC insert can vary depending upon what tire you plan to use, as different sizes / brands have different thicknesses of the bead. For example, older big TSL's apparently have a thicker (or maybe thinner I can't remember) bead then new ones, and pit bull tires have a bead thickness similar to the new TSL's. I believe the required inserts are 6.25" wide for the old thick bead stuff and 6.5" for the newer stuff. I have been researching this as I have a set of H1's I re centered and am having a hard time justifying spending $200+ for some PVC.
Oh, and a side note......after a conversation with Trail worhty about this, I was told that if you had a good table saw and a router, it wasn't that hard to trim the inserts down if you were to change to a tire that needed the narrower size.
With that being said, the width needed for a PVC insert can vary depending upon what tire you plan to use, as different sizes / brands have different thicknesses of the bead. For example, older big TSL's apparently have a thicker (or maybe thinner I can't remember) bead then new ones, and pit bull tires have a bead thickness similar to the new TSL's. I believe the required inserts are 6.25" wide for the old thick bead stuff and 6.5" for the newer stuff. I have been researching this as I have a set of H1's I re centered and am having a hard time justifying spending $200+ for some PVC.
Oh, and a side note......after a conversation with Trail worhty about this, I was told that if you had a good table saw and a router, it wasn't that hard to trim the inserts down if you were to change to a tire that needed the narrower size.
I'm not even sane enough to spend $200 for 4 pieces of PVC when I can go to the local plumbers and get them cut for less than a fraction of the $200 cost. Then I can do the grinding and smoothing of the corners/bevels myself instead.
We need to call you Sargeant Obvious, next in line under me."run flat" was the military term for the original rubber or mag inserts used by them, because of the raised center, if a tire were shot out, went flat etc you could continue to run on it till out of harms way. The factory run flats are no good for "our" uses because you can not air down with out the inside of the tire constantly contacting the raised center of it. That is why you often hear of people using "cut down" rubber or mag inserts
I looked into making some when I got my h1s and it was pretty pricey for the pipe. I couldnt find anyone who would sell less then a full stick (20' maybe?). Just something to think about
Thats why you go to your local plumbers and ask them to cut individual pieces.
Just an FYI 18"pvc prolly costs over $50 a foot.... Just sayin
