Thug Posted January 5, 2015 Posted January 5, 2015 i think these guys are probably the experts at pressurised PET bottles. http://www.aircommandrockets.com/safety.htm Following on from that, wouldn't a reinforced bottle be more suitable for tubeless tyres? Such as described here: http://www.aircommandrockets.com/construction_2.htm#ReinforcingBottles
CdT85 Posted January 5, 2015 Posted January 5, 2015 Perhaps still touching on the illegal side, but then rather buy a R100 fire extinguisher, empty contents into your wheelie bin, fit a T-piece so you can use one side for inflation and the other for deflation, no need to drill holes or modify the structure. Even then, as said before, there are regulations about vessels under pressure, and they sure are dangerous. If we can spend 10's of thousands on our bikes, why be unsafe with these kinds of contraptions. Would you use a coke bottle as a helmet? Yet you will pay more for a helmet than a compressor, and dare I say I would rather cycle without a helmet than getting this DIY setup under pressure. How about a 9oz Paintball CO2 bottle about R100? Cost like R12 to fill up with CO2, Just modify a marker remote feed line with a pressure regulator to connect to the valve, also a cheap part to buy from Midas. Thus you do not need to modify a pressurized container in any way or compromise on its integrity/safety.
Hairy Posted January 5, 2015 Posted January 5, 2015 Just for added security wrap that bottle in a couple of layers of duct tape
karlito Posted January 5, 2015 Posted January 5, 2015 Just keep in mind that the CO2 reacts with the sealant, so it is better to try and use normal air.
Re::Cycling Posted January 5, 2015 Posted January 5, 2015 Use a strap to add pressure to the tyre when inflating tubeless. No compressor needed. Remove core to pump quicker with a floor pump.
WrightJnr Posted January 5, 2015 Posted January 5, 2015 Use a strap to add pressure to the tyre when inflating tubeless. No compressor needed. Remove core to pump quicker with a floor pump. 2015-01-05 18.15.14.jpgOld Karting trick that.
SCD Posted January 5, 2015 Posted January 5, 2015 I'm using the coke bottle ghetto inflator since years. The risk of the bottle failing is immanent so it always should be covered with a heavy cloth or hoodie, but then all good. I never drilled into the bottle though to avoid compromising the structural integrity. I don't think that the proposed car tyre idea would work (anybody tried it?). You need the 6-8bar pressure to force enough air through the thin valve stem to seat successfully. And pumping a car tyre up to 8bar may unleash a different level of mayhem, mind that ;-)The belt trick also worked nicely on my latest new tyres (the kids used the coke bottles for dodgy experiments, soo...). But sometimes all just fails. Whoever wants to seat an Ikon on a Wide Lightning rim should not do this at the evening before a race....
Boerklong Posted January 5, 2015 Posted January 5, 2015 Just go old school... fill it up with deoderant and light it up. Ha ha ha
Boerklong Posted January 5, 2015 Posted January 5, 2015 We made some badass potato guns out of pvc. Now that class 9 pipe can take some pressure when plugged up
Grebel Posted January 5, 2015 Posted January 5, 2015 Just go old school... fill it up with deoderant and light it up. Ha ha haTwo words, Lighter Fluid...
Shebeen Posted January 6, 2015 Posted January 6, 2015 essential reading material for this thread http://upload.wikimedia.org/wikipedia/commons/2/22/Anarchistcookbookdsfg.jpg
Odinson Posted January 6, 2015 Posted January 6, 2015 Use a strap to add pressure to the tyre when inflating tubeless. No compressor needed. Remove core to pump quicker with a floor pump. 2015-01-05 18.15.14.jpg Wouldn't that force all of the sealant out? I can just imagine fastening the strap and all of the sealant comes flowing out.
arendoog Posted January 6, 2015 Posted January 6, 2015 I like innovation and this is a good idea if you stick to the most important constant of 8 bar and cover the bottle with an old sock or towel .My similar experiments almost cost me my manhood and 3 weeks in hospital after having skin grafts because of chlorine bombs as a teenager .We also made real gun powder bombs until the fire department stopped us .If you wrap the bottle in a towel it would contain any serious blast .I think?
Re::Cycling Posted January 6, 2015 Posted January 6, 2015 Wouldn't that force all of the sealant out? I can just imagine fastening the strap and all of the sealant comes flowing out This helps with locking the bead. I've only used this method once (on Giant XC rims + Schwalbe TLR EVO tyres), it originally comes from Park Tools. The beading locked. When I deflated, only 1 side unlocked. I then added the sealant through the valve and re-inflated - having 1 side seated created enough pressure with a floor pump to seat the other side and pump up. Here's the article I found this tip on:http://www.parktool.com/blog/repair-help/tubeless-tire-mounting-and-repair
mtbride Posted January 6, 2015 Posted January 6, 2015 I'm struggling getting a RoRo and RaRa snakeskin seated on the Wide Lightnings, I think the extra width of the rim also makes it a bit more of a mission ... So I will be trying the pre-tube method tonight, could not get it to seat with either a floor pump or at the station. Need more practice with this maybe as well.
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