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Hi all.

So my rear tire/rim keeps leaking air.

Have had the rubber changes. Leaks.

Had a tire person put a new valve stem in where the soap bubbles came from, still leaks.

So guessing I need a new rim….

My three options I see are:

Buying a new one on scooter west for $200 plus shipping.

Buying a used on on eBay for $150 and hoping rim is ok.

The tire guy said he can try sandblasting rim to see if that helps.

Does any aftermarket rim fit on this scooter? I couldn't really find the answer. I saw an 11 inch lx may and those are only like 79 new.

Jw and seeking help.

Thanks
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Unless you want to spend $80 for a brand new 10" rim, those are your options.

https://scooterpartsco.com/vespa/lx-150/lx-150-tires-and-wheels/vespa-lx-rear-rim
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Thnx for link.

Just to confirm , the 10 inch rim in the link will fit my et4 back wheel? Exact match pretty much? Thnx.
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It does fit the ET4. On a couple of older rims, I've seen air start to seep through the aluminum in the middle. It is so weird and unexpected to see air bubbling up through the aluminum when you spray it with soapy water. I'm not sure why that happens.
If it's leaking at the bead, there is a bead sealing compound that tire installers use to seal the bead and make sure air can't leak out there. It would also be great to use to tar and feather someone, because once you touch the stuff, it's on you for a while.
⚠️ Last edited by Motovista on UTC; edited 1 time
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Awesome. Ty so much!
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Motovista wrote:
It does fit the ET4. On a couple of older rims, I've seen air start to seep through the aluminum in the middle. It is so weird and unexpected to see air bubbling up through the aluminum when you spray it with soapy water. I'm not sure why that happens.
If it's leaking at the bead, there is a bead sealing compound that tire installers use to seal the bead and make sure air can't leak out there. It would also be great to use to tar and feather someone, because once you touch the stuff, it's on you for a while.
Out of interest - is it therefore worth getting them re-sprayed/powdered whilst they're still good, or better to get new ones?

Was hoping to keep mine stock but appreciate not everything can be preserved.
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OscarSass wrote:
Out of interest - is it therefore worth getting them re-sprayed/powdered whilst they're still good, or better to get new ones?

Was hoping to keep mine stock but appreciate not everything can be preserved.
Almost all the rims installed won't leak air through the aluminum, so the odds are in your favor. In fifteen years, I've seen air leak through the rim two or three times. The conversation surrounding this phenomenon usually begins with, "come and look at this, you're not going to believe it."
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No need for a new rim. I can pretty much guarantee this stuff will fix your problem for about $15 and also protect you from puncture flats.
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Thanks. Never tried this before.

If I use and doesn't resolve, it doesn't "ruin" the rubber does it. Because my tire is brand new and I'd still want to transfer it to a new rim.

Thnx
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Lars_Danner wrote:
I can pretty much guarantee this stuff will fix your problem for about $15 and also protect you from puncture flats.
But it will sure make the tire shop that is trying to change out the old tire unhappy!
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Never asked - where in the rim is the air leaking from?

I know nothing about sealants on motorcycle tyres… but I have experience with tubeless conversions on bicycles.

Rim tape seals the rim… and the liquid sealant seals punctures/pores in the tyre (in a nutshell). Had a bike holding 100 psi no problem, so 26-34 psi shouldn't be a problem.

Depends on where the leak is really - if it's in the centre of the rim, a good bit of rim tape might do it.

No so sure about the sides of the rim - tyre sealant tends to get flung towards the tyre itself when moving.

Had a leaky valve once, and the tyre jollop obviously didn't help - I had to replace the valve.

Anyway, that's my lycra-clad experience of tyre sealants… 😇

If the rim is leaking, what sort of failure can one expect? Will it crack, or just remain a bit porous? Good questions to ask if you're worried about sudden failure. 🤞
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leftygl wrote:
Thanks. Never tried this before.

If I use and doesn't resolve, it doesn't "ruin" the rubber does it. Because my tire is brand new and I'd still want to transfer it to a new rim.

Thnx
Nope it's fine. Won't hurt the rubber at all, and doesn't really make a mess.
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Lars_Danner wrote:
No need for a new rim. I can pretty much guarantee this stuff will fix your problem for about $15 and also protect you from puncture flats.
from first hand experience, this will not work on a cracked rim.

replacing the rims is the proper and safest option.
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Motovista wrote:
Almost all the rims installed won't leak air through the aluminum, so the odds are in your favor. In fifteen years, I've seen air leak through the rim two or three times. The conversation surrounding this phenomenon usually begins with, "come and look at this, you're not going to believe it."
same here. maybe a handful in 20 years and it very much is a: dude, you gotta come check this out or a "WTF did you run over?!??" type of deal.
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My own rear wheel/tyre is leaking between the tyre and wheel rim just around the red dot (and the valve) so the seal between the rim and bead is not …sealed.
I am taking it too a bike shop to see if they can take that side off the rim, and then blow it back into position. Failing that, it may be possible to repair any damage or corrosion with epoxy resin. I don't agree that the only way is to replace the rim if the wheel has not suffered damage due to running over something. A good repair is as good as new done properly.
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