Bartyfixedit
LIFE MEMBER
I had some Michelin Agilis tyres fitted last week and I supplied some alligator CVV high pressure valves.
I watched the valves being fitted to the rims and the tyre fitter had a real struggle getting the first two valves in, they were really tight to pull into the rim.
When it came to the third and fourth wheel he managed to break both valves, pulling the metal part out of the rubber cone. Luckily the tyre place had some screw-in type high pressure valves which they fitted instead.
Once home I googled the fitting instructions for the alligator CVV and these showed that the valve should push in simply with your thumb. Link below
If you watch the video you will see that to remove the valve you simply cut the little green ring and the valve will pull out through the rim. Having seen this I was immediately concerned about the state of the little green ring in the two wheels that still have alligator valves, having seen how hard the tyre fitter had been pulling on them. I'm taking the van back on Monday to have screw-in type valves fitted.
I am not criticising the alligator valve here, my concern is that most tyre fitters will try and pull them in using the normal tool rather than pushing them in with their thumb and I'm concerned that if that little green ring is damaged and later fails then the valve will blow out with an instantaneous deflation. Below is a photo of one of the valves that broke so you can see what I mean, you can see that the little ring is cracked.
I watched the valves being fitted to the rims and the tyre fitter had a real struggle getting the first two valves in, they were really tight to pull into the rim.
When it came to the third and fourth wheel he managed to break both valves, pulling the metal part out of the rubber cone. Luckily the tyre place had some screw-in type high pressure valves which they fitted instead.
Once home I googled the fitting instructions for the alligator CVV and these showed that the valve should push in simply with your thumb. Link below
If you watch the video you will see that to remove the valve you simply cut the little green ring and the valve will pull out through the rim. Having seen this I was immediately concerned about the state of the little green ring in the two wheels that still have alligator valves, having seen how hard the tyre fitter had been pulling on them. I'm taking the van back on Monday to have screw-in type valves fitted.
I am not criticising the alligator valve here, my concern is that most tyre fitters will try and pull them in using the normal tool rather than pushing them in with their thumb and I'm concerned that if that little green ring is damaged and later fails then the valve will blow out with an instantaneous deflation. Below is a photo of one of the valves that broke so you can see what I mean, you can see that the little ring is cracked.