Necessary to cut off runflats?

[JeepHD]

Is it really necessary to cut the runflats off of the hummer beadlocks to run 38x12.50x16.5s? I am just being lazy and it looks like it will be a pain to cut them off.

I have heard of them rubbing and tearing up the inside of tire at low PSI.

Thanks
Josh

[94Dodge Truggy]

Less weight if cut off and they can get in the way of tire flex. I am not sure if they will work with both a 6 or an 8 ply tire though. They are magnesium so don't do anything that will make them burn!

[JeepHD]

Originally Posted by 94Dodge Truggy

Less weight if cut off and they can get in the way of tire flex. I am not sure if they will work with both a 6 or an 8 ply tire though. They are magnesium so don't do anything that will make them burn!

I mounted one of the TSLs on a rim last night just to check it out. Seemed to mount up nicely. I just don't really feel like cutting the runflat portion off, but I probably should. Also I don't have a band saw so I will have to do it with a sawzall and it doesn't look like it will be very easy.

Thanks

[carwash]

weight... ha, thats funny truggy... the things weigh next to nothing...

but, yes i would cut them off running anything less that a 40" tire. they are quite brittle and crack if hit just right. when the crack, they create sharp edges that will cut a tire.

when i ran my 39.5" boggers, i kept about 5 psi in them and every once in a while on a hard hit, i would feel it hit. Don't think i ever cracked one, but never had them apart to check either, so who knows.

I am cutting my current ones, and i'm gonna be running 44's. Bette safe than sorry i guess. They will cut fairly easy with a sawzall blade. Just get you some super long Milwaukee "torch blades" and it will roll thru it pretty easy. you will have to use a grinder as well to get them down close.

here is a shot of some shaved runflats for inspiration...

[94Dodge Truggy]

I am a fanatic on weight savings! But what about the 6 or 8 ply tire. Will the hummer runflat insert accommodate either?

[JeepHD]

I was pretty sure I needed to cut them, just didn't want to hassle with it. Guess I will get some long sawzall blades and go at it. My TSLs are 6 ply and the one I mounted went on fine.

[JeepHD]

Weights for your information:

35 lbs - H1 rim only(no beadlock or runflat)
47 lbs - H1 rim with complete runflat
41 lbs - H1 rim with beadlock (runflat cut off)
12 lbs - Runflat
6 lbs - Beadlock only (runflat portion cut off)

These are in no way exact numbers but close. I put them on a household scale that a person would weigh themselves on.

[94Dodge Truggy]

Yeah my 42" swamper tsl's and h1 rims were 148lbs!

The new setup will be almost 200lbs!

[JeepHD]

Originally Posted by 94Dodge Truggy

Yeah my 42" swamper tsl's and h1 rims were 148lbs!

The new setup will be almost 200lbs!

What else did you do to cut that much weight? Mine should be around 114 lbs.

Someday I would'nt mind upgrading to aluminum rims with stauns, but this is a cheap option for now.

[itbrokeagain]

Originally Posted by JeepHD

Someday I would'nt mind upgrading to aluminum rims with stauns, but this is a cheap option for now.

I have been in situations where I have bent my steel rims very very badly and we were able to hammer them back into place. Aluminum rims would have cracked and I would have been in trouble. Just thought I would put the idea into your head.

[JeepHD]

Progression of cutting Runflats using Holesaw and sawsall method





Finished Product