Beadlock shifting with PL dual stage foam

[Kronblom]

So I just recently got some proline dual stage foams which I want to use with my hyrax tires. I also got some Boomracing Krait sandstorm beadlocks that I want to use. But I noticed when I assembled the tires that the inner ring shifts in or out depending on how I push on the beadlock. The only thing I can think of is that the hard inner foam is ridged on the side that sits against the inner wheel ring and since the ring is smooth it just slides around. I assume if the ring had a groove it would “lock” into the ridge of the hard foam. Do proline wheels have this “groove” on their inner rings? Since the wheel can shift around I would guess that it can affect for example side hilling. And I thought the whole point of dual stage foam was to improve side hilling.
So my question is basically if proline dual stage foams only work with wheels that don’t have a smooth inner ring? Or is there something I can do to stop the whole beadlock to move in or out depending on how I press on it? Apart from glueing the inner ring to the foam.


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[JatoTheRipper]

The foams are larger than the tires. Once you put the foams in the tires and then install the wheels, the compression will force the soft foams into the grooves of the inner foams and this will help hold them in place. You don't have to use Proline wheels nor is it really something to be concerned about. All foams will move side to side a little bit. That's why you see RC tires wobble in videos and on the trail.

 

[Xx Losungen xX]

I've got a set of those foams as well as a set of proline wheels.

The foams certainly don't play nice with SSD wheels, the foams shift side to side constantly so I don't use them.

The Proline wheels have a groove where the foams sit, clearly tailored to their own rims.

 

[Kronblom]

I've got a set of those foams as well as a set of proline wheels.

The foams certainly don't play nice with SSD wheels, the foams shift side to side constantly so I don't use them.

The Proline wheels have a groove where the foams sit, clearly tailored to their own rims.

I was considering ssd wheels but I was afraid they would shift a lot too. Weird thing is that there are so many videos with people using PL dual stage foams and I haven’t found anyone mentioning how the wheel slides in and out of the tire.


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[magic_yeti]

I'm using SSD 1.9 Rockracer wheels with proline dual stage and Hyrax Tires on my Trex, never mentioned that they move...
Will have an eye on it next time i give Trex some run time.

 

[JatoTheRipper]

I was considering ssd wheels but I was afraid they would shift a lot too. Weird thing is that there are so many videos with people using PL dual stage foams and I haven’t found anyone mentioning how the wheel slides in and out of the tire.


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There's a reason nobody mentioned it. It doesn't happen (for most people). SSD wheels work just fine with Proline tires and foams.

 

[OSRC]

They can shift back and forth somewhat on wider rims, like Gearheads and SSD 25mm width rims. Other standard 22mm width rims (including Boom, SSD, etc) they stay in place just fine. My foams fit perfectly on my Boom KRAIT Golems. No shifting at all.

On wider rims, you can put a few dabs of rubber cement on the outside of the ring - non permanent and will keep it from sliding laterally. Or cut your self up some small foams spacers to keep it centered. I've never done either personally - I can see a little shift on the workbench with certain wheels - especially on my Gearheads - but it's never been much of an issue on the trail.

 

[Kronblom]

I put my 3D printer to work. Designed a simple 2mm thin ring that press fits on the inner ring of the wheel. One on each side and that leaves a gap in the middle where the proline foam ridge can fit in. Sure it can still move around if I push, but that small addition should be enough to stop the inner foam sliding on the inner ring when side hilling.

 

[RC ManChild]

I feel your pain, I've had nothing but trouble with both Proline and CI dual stage foams wobbling all over the place. As this is an older post if you've found a solution I'd be happy to hear it. I'm currently using Crazy Crawler foams and have given up on side hill support. Cheers

 

[RC ManChild]

I put my 3D printer to work. Designed a simple 2mm thin ring that press fits on the inner ring of the wheel. One on each side and that leaves a gap in the middle where the proline foam ridge can fit in. Sure it can still move around if I push, but that small addition should be enough to stop the inner foam sliding on the inner ring when side hilling.

any chance you could share the STL?