#61
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I clean the area with rubbing alcohol, let dry and apply patch. Since cleanliness is a must, and the patch is transparent, I foresee being a PITA doing this work on the side of the road. OK at home. I'm also using Barbieri Piuma TPU tubes (disc brake only). They were a lot cheaper than tubolito, made in Italy and no issues in the past 1500k. It seems that prices have gone up and aren't as good of a deal anymore. Only caveat is that I'm using 700x30c tires and it may be a bit too large for these tubes. The section of tube that overlaps itself will not strecth like the rest of the tube, so you can see a dimple on the tire. It hasn't been a problem and would not be an issue if running 700x25c or 28c. I thought at first that Barbieri was making RH tubes (I believe they make RH pumps) but Barbieri uses plastic stems. |
#62
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Huh? Repairing = patching? Butyl tubes are problematic from this standpoint?
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#63
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https://www.aliexpress.us/item/32568...Cquery_from%3A Tim |
#64
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my thoughts exactly reading this.. I was like "what?"
__________________
Be the Reason Others Succeed |
#65
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A few answers to questions posed in this super-interesting discussion:
- Rim brakes are no problem. The melt point of TPU is about where butyl tubes fail (145°C or 295°F)—higher than latex, which also works fine with rim brakes. - CO2 is OK for topping up, but initial inflation with CO2 is not recommended. The high pressure and cold temperature (as the CO2 expands) can split the tubes. - The Rene Herse TPU tubes are made in Germany. They are not just some rebranded product you can get from other sources. (None of our products are.) Cheers, Jan Heine Rene Herse Cycles |
#66
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#67
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And that you'll need to bring a pump on your ride.
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#68
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CO2 is becoming unusable for inflating tires. Not supposed to be used with natural latex sealants nor with TPU tubes. The usage case for CO2 is diminishing.
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#69
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Note that when I put the BikeGPS order in my cart it was $17+ and when I went to check out a minute later it was $22.90, so I did a general search for the same package and found it at another vendor for the original $17+.
__________________
Bingham/B.Jackson/Unicoi/Habanero/Raleigh20/429C/BigDummy/S6 |
#70
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I ride with a pump on every ride.. not using CO2 is just one small thing I can do for the environment (like not using disposable plastic water bottles)
__________________
Be the Reason Others Succeed |
#71
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There's progress for ya. I think I've had about 2 flats in the last 5 years, so my CO2 landfill contribution hasn't been inordinate, but I don't think I'll go to TPU tubes if it means I have to use a mini hand pump to 90psi in case of a flat.
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#72
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I have never used a CO2 cartridge in my life to inflate a tire. And I have no reason to begin to think about it. Pump for me.
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#73
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I saw that happen on a ride once with butyl tubes, except that instead of merely splitting the tube, the tube shattered into a number of pieces when it froze. |
#74
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Tubeless, latex, butyl, TPU, makes no difference: you need to bring a pump.
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#75
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What a world we've made for ourselves where $30+ inner tubes are a thing.
__________________
http://less-than-epic.blogspot.com/ |
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