Altro metodo potrebbe essere quello della camera d'aria da 24 tagliata in due come descritto qui (copio e incollo da mtbr). Si risparmia poco peso ma è protetta da forature. Lo conoscete ?
Get a 24"x 2.3 tube, cut the tube lengthwise starting at the valve (cut it down the middle so both sides are equal). Lay it over the rim with the valve stem in the hole, as I said above I got a schrader valved tube, so I repositioned the rim tape so the hole is in one of the cutouts, but you can also drill the hole so a schrader will fit, I think).
Take a wet rag with a small blob of dishwashing soap and wipe the tube, this removes the powder, provides a little lubrication to help start the filling process. Put the tire on as you would a normal tire.
If you're a gambler (like me) put 4-6oz of
Stans in the tire at this point. If you're the cautious type, you might want to try airing it up first to make sure everything will work before you commit to the Stans. You can also put a little Stans on the bead, if the soap isn't staying in place or is drying out before you get the tire started.
Make sure the bead on the tire is sitting as far out on the rim as you can get it on both sides, it doesn't need to be all the way out, but at least get it so its resting towards the outside so there are no large gaps where air can escape.
If you are using a schrader valved tube, remove the valve core, it just makes for better air flow for airing up. I used a compressor for my first one and the floor pump for the second one. It should air up like there's a tube in there. If not you can take a ratchet strap and go around the tire, tighten it down just a little, this will force the beads out a bit. I didn't need to do that for either tire, but it can help. Sometimes I've had to work the bead out by hand a bit as I tried to add air to get that bead up against the ridge so it will start taking air.
As you air up the beads should migrate out toward the rim until they fall into the bead groove in the rim. One of my tires made a popping sound as the bead got in place (done with an air compressor), the other (done with a floor pump) moved out slowly so it didn't make that sound.
If you didn't put Stans fluid in before, add it through the valve stem, replace the valve and you're good to go. There may be some small bubbles that come out through the rim/bead interface, that should stop as the Stans seals it up over a period of an hour or so. My first tire had some bubbles, my second one did not. Shake the tire and roll it around to get the fluid where it needs to be to seal up any leaks.
I keep adding air during the Stans cure time, keeping the tire at 15-20PSI. I let it sit overnight before airing down to riding pressure.
Take a pair of scissors and trip off the excess tube that's hanging out over the rim. If you're a gambler (like me) you can trim it very close. By trimming it close you are reducing the chance that you'll be able to re-use that tube if you have to re-do things down the road - its hard to get it in exactly the right place if its trimmed close.
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, messo camera scwalbe freeride (185gr) = 2860gr in totale...
, cambio colore al nastro quando voglio !
