GP 4 Season Clincher "stuck" on tubeless rim??
#1
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GP 4 Season Clincher "stuck" on tubeless rim??
When I mounted these tires it wasn't fun. It was the tightest combination (GP 4 Seasons + HED Ardennes SL+) that I'd ever experienced. But now, I don't know what to do to get this thing off. The tire bead is locked so hard into place that it seems like I will rip the sidewall getting it off. Is there something I don't know about tubeless rims? I wasn't using tubeless, btw. I was running this combo with a tube. God forbid I have to do this on the side of the road.
Edit - I have changed a million tubes in my life and I've never experienced anything like this. With all the strength in my thumbs I can maybe budge the bead a centimeter. I *might* be able to get something extremely thin under the bead, like, butter knife thin, but I definitely can't get my tire lever in.
Edit - I have changed a million tubes in my life and I've never experienced anything like this. With all the strength in my thumbs I can maybe budge the bead a centimeter. I *might* be able to get something extremely thin under the bead, like, butter knife thin, but I definitely can't get my tire lever in.
Last edited by showlow; 02-24-20 at 07:38 PM.
#2
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Ok... I figured it out. You have to slide the bead into that center channel.
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Yup. I’ve had the same issues. Finally figured out use my fingers to pull from the opposite side, the tire off the raised section into the center of the rim, then I could get a tire lever under the bead.
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FWIW If I have a tire rim combo that make the install hard, I make myself simulate fixing a flat to ensure that the tools/knowledge I have are up to the task before i have to do it in a non fun situation
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Yep, the terms of engagement are different with tubeless-ready rims. As long as you 1) don't use Velox tape and 2) get all of the bead in the center channel when mounting or dismounting, it shouldn't be too bad.
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PS - I'm so glad I didn't use regular Velox tape.
Last edited by showlow; 02-24-20 at 07:40 PM.
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I’m dealing with a similar issue. My LightBicycle rims have a really strong bead retention ridge and I’m using vittoria TLR tires. I can make the bead budge by about 3mm in a very small spot if I use one palm to push the tire and one hand to pull the rim with all my strength. I’ve found the only way (besides being a gorilla) to get the bead off is to grow a 3rd hand and stick a tire lever in that 3mm gap between the tire bead and rim sidewall. Note that the lever does not go under your tire bead. If you can do that with a tubeless setup, you’re either going to hemorrhage air and sealant or risk a catastrophic burp. Anyway, this effectively saves your progress so you can repeat this push/pull maneuver next to that section. At that point the tire should pop off pretty easily. The concept is simple. And if you have a friend who’s willing to help, the execution would probably be easy too. But alone? On a cold or wet day near the end of the ride? Forget about it. I’m legitimately considering sanding down the ridge in a small section so I can get it going roadside.
A mountain biker on youtube laid the wheel on the ground, stepped on the tire and pulled the rim up. Of course roadies can’t get enough purchase on our 25-30mm tires.
A mountain biker on youtube laid the wheel on the ground, stepped on the tire and pulled the rim up. Of course roadies can’t get enough purchase on our 25-30mm tires.
Last edited by smashndash; 02-25-20 at 04:58 PM.
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I’m dealing with a similar issue. My LightBicycle rims have a really strong bead retention ridge and I’m using vittoria TLR tires. I can make the bead budge by about 3mm in a very small spot if I use one palm to push the tire and one hand to pull the rim with all my strength. I’ve found the only way (besides being a gorilla) to get the bead off is to grow a 3rd hand and stick a tire lever in that 3mm gap between the tire bead and rim sidewall. Note that the lever does not go under your tire bead. If you can do that with a tubeless setup, you’re either going to hemorrhage air and sealant or risk a catastrophic burp. Anyway, this effectively saves your progress so you can repeat this push/pull maneuver next to that section. At that point the tire should pop off pretty easily. The concept is simple. And if you have a friend who’s willing to help, the execution would probably be easy too. But alone? On a cold or wet day near the end of the ride? Forget about it. I’m legitimately considering sanding down the ridge in a small section so I can get it going roadside.
A mountain biker on youtube laid the wheel on the ground, stepped on the tire and pulled the rim up. Of course roadies can’t get enough purchase on our 25-30mm tires.
A mountain biker on youtube laid the wheel on the ground, stepped on the tire and pulled the rim up. Of course roadies can’t get enough purchase on our 25-30mm tires.
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EDIT: My technique didn’t work a second time. I had 1, then 2 tire levers in there and the bead would not budge. So, I used a convection-based heater to heat up the whole tire and it popped right off. God help me if this happens on the road, in the cold or rain.
Last edited by smashndash; 02-26-20 at 12:33 PM.
#12
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After some practice, I was able to do the rear rim in just a few minutes. I still have the blisters on my thumbs though and it took a lot more effort than it normally would to remove the tire and change a tube. The trick, like I mentioned above, is to push the bead into the center channel on the rim. You have to focus all your effort on pushing that bead inward. Eventually the bead will slip and drop into that center channel and you can then remove the tire like normal.
Like you said, I'm not looking forward to doing this on the side of the road. I may carry a pair of full finger gloves with me just in case I have to do it and need some extra grip strength. The blisters on my thumbs are still healing.
Like you said, I'm not looking forward to doing this on the side of the road. I may carry a pair of full finger gloves with me just in case I have to do it and need some extra grip strength. The blisters on my thumbs are still healing.