Tip: My tubeless sealant in tubes experiment
#26
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When the sealant comes out of a puncture it makes a rhythmic hiss as the hole passes through the puddle.
The question is do you go fast enough for the fluid to balance the tire like Dyna Beads?
The question is do you go fast enough for the fluid to balance the tire like Dyna Beads?
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Hardy - I’m guessing you have a bad tire rim combination. As there is no good standard, some tire-wheel combos are too tight (and won’t go on), and some tires are too loose.
Contenital (and others) have developed a new standard they plan on rolling out in 6-12 months that should address that issue. Right now, high pressure road tubeless is hit or miss, unless you match your tire to an approved-tested rim. High-pressure road tubeless also requires a hooked rim. Personally, I’m fine with some fast 32mm tires running hookless at >70PSI.
Contenital (and others) have developed a new standard they plan on rolling out in 6-12 months that should address that issue. Right now, high pressure road tubeless is hit or miss, unless you match your tire to an approved-tested rim. High-pressure road tubeless also requires a hooked rim. Personally, I’m fine with some fast 32mm tires running hookless at >70PSI.
Anything above 32-35mm wide seems to work decent but bellow that, you may be in for a headache.
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My optimistic winter project of taking some used Dura Ace 7850 tubeless compatible clinchers (that had never been set up for tubeless) got sidelined due to the front tire never being able to hold air and leaking large amounts of air through one of the beads. The stubborn tire is a 23mm Hutchinson Atom. I don’t think this tire will ever run tubeless. I mounted and dismounted it like 3 times and caused a small split in the square bead with my tire lever. I need to just wash out the Stan’s sealant and put a latex inner tube in there (for now).
I really like latex inner tubes. I think I have heard of folks putting sealant into their latex tubed tubulars with some success. I’m fairly OK with the daily re-inflation before each ride necessary on my latex tubed road bikes. I did consider injecting about 45 ml of Stan’s in there as an experiment to see if it changes anything.
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I used Stan's sealant in tubes for a season and was pleased, but found that Flat Attack pre-filled tubes were a better alternative. Their sealant is gauranteed for 5 years so it doesn't need to be "refreshed" from time to time to remain liquid. The sealant is also supposed to be biodegradable which makes me feel all warm and fuzzy for using it. Despite many punctures, I haven't had a flat on the road in over three years. When a puncture occurs, the tire loses a little pressure, I stop and remove anything I find on the tire, add air or CO2, give the wheel a spin and ride on.
Marc
Marc
The guys at Utah Trikes swear by Flat Attack, and I had them add some to my velo when it was in. I'll give it a couple months, and if it seems to help a lot, I'm going to order a bottle for my other bike as well.
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I had mixed experience with their tubes.
The 2" tubes worked well - almost too well as I didn't know I had a nail in my tire until it worked its way to the rim side of the tube - put a hole in there - and the sealant won't help with that.
the ~25mm tubes didn't seem to help seal much at all
The last couple of tubes I bought were defective and blew out within a day of installation (oddly at the same spot).
Bottom line - if you are using the bottle to fill up some mountain bike tubes, it can work great. Just be ware if there is an unusual small loss in pressure day to day - check to see if there is something in your tire. They should hold air with very minimal pressure loss day to day. Enjoy!
The 2" tubes worked well - almost too well as I didn't know I had a nail in my tire until it worked its way to the rim side of the tube - put a hole in there - and the sealant won't help with that.
the ~25mm tubes didn't seem to help seal much at all
The last couple of tubes I bought were defective and blew out within a day of installation (oddly at the same spot).
Bottom line - if you are using the bottle to fill up some mountain bike tubes, it can work great. Just be ware if there is an unusual small loss in pressure day to day - check to see if there is something in your tire. They should hold air with very minimal pressure loss day to day. Enjoy!
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I had mixed experience with their tubes.
The 2" tubes worked well - almost too well as I didn't know I had a nail in my tire until it worked its way to the rim side of the tube - put a hole in there - and the sealant won't help with that.
the ~25mm tubes didn't seem to help seal much at all
The last couple of tubes I bought were defective and blew out within a day of installation (oddly at the same spot).
Bottom line - if you are using the bottle to fill up some mountain bike tubes, it can work great. Just be ware if there is an unusual small loss in pressure day to day - check to see if there is something in your tire. They should hold air with very minimal pressure loss day to day. Enjoy!
The 2" tubes worked well - almost too well as I didn't know I had a nail in my tire until it worked its way to the rim side of the tube - put a hole in there - and the sealant won't help with that.
the ~25mm tubes didn't seem to help seal much at all
The last couple of tubes I bought were defective and blew out within a day of installation (oddly at the same spot).
Bottom line - if you are using the bottle to fill up some mountain bike tubes, it can work great. Just be ware if there is an unusual small loss in pressure day to day - check to see if there is something in your tire. They should hold air with very minimal pressure loss day to day. Enjoy!
I've started to carry a Gerber multi-tool with me, as there have now been two instances where there were objects in the tire that I could not pull out with my fingers, and I needed pliers.