Velociraptor w/ Notube Arch's
I am having problems with getting a set of Velociraptors (wire-bead) to hold air on a Notubes ZTR Arch rim using the Notubes system. I already made the mistake of putting the sealant in the tubes before checking to see if it would hold air, but I have gone back through and followed the video on their website.
Stan doesn't seem to have problems inflating the tires once he has them mounted on the rims, but mine don't hold pressure at all. I put soapy water around the tire and tried to inflate the wheel but bubbles came out from literally everywhere along the rim. Everywhere except through the nipples.
I don't have compressed air and I know that the faster it inflates the more pressure is against the bead helping it seal. I have already tried the trick where you remove the valve core to increase flow.
Am I missing something? Is this tire not compatible? It seems like other people have got at least the kevlar version to work on their rims and even Notube Olympics. Is there some problem with using wire bead that I don't know about? I am not having problems taking the tire on and off the rim and can do it without tools.
I've been reading everything I can find on ghetto tubeless.
Been researching about going ghetto.
***I have no first hand experience****
Just tiring to help
1. Use the cut tube method
2. Stick a tube in there and forget about it.
3. Replace the tire with a tubeless tire.
***After reading all these horror stories I'm sticking with tubes unless I taco a wheel.***
My compressor broke last year and before I got it fixed I had to make a few trips to the gas station to use their air. Take a bucket with your soapy water and the tires ready to go on the rims and give it a shot. Once you get the initial seating done you shouldn't need the compressor the next go around. Worth a shot.
NOTE: IF you plan to go tubeless, and stay with tubeless, I highly recommend getting a compressor! Trying to live with tubeless without one is like trying to change your oil in your car without tools...
I am running the Stans system on my main bike and have changed tires on it without issues when I put on Conti Verticals on 717 rims. Just the Velociraptor/Arch combinations seems to give me trouble.
I emailed Stans and got a reply saying that a compressor would be necessary and that that is to be expected when running tubeless. I took my tires to the university and used their compressor and with much finnagling put some pressure in the tire which held for less than 5 minutes. When I got home, I was able to get air to "stay" in the tire with a floor pump long enough to increase pressure, but at about 40psi the tire blew off the rim. Bang!
Put an old tube in there which will have to suffice for now. The tube is atleast holding 40psi while keeping the tire on the rim.
It is just Stans telling you Velociraptors are out of date....try a newer tire.
I crashed hard enough on my Tallboy to break my leg,
The carbon is way more durable than most people.
Never inflate a standard tire up that high in a tubeless setup. It says right on Stan's website to not exceed 40psi when setting up any of his set ups.
I never go over 35psi on any ghetto, or Stan's setups with standard tires.
I did set up Velociraptors on Mavic 321 rims, using a split tube. Had a little trouble because the wire beads had small kinks where the tires had been hanging, and it took me pressing the tire in various places before they finally popped into place. Once on, they worked just fine.
I have not used those tires on a Stan's rim however. I have Flow's now, and I'm using 29" Rampage up front, and FireXC rear.
I have never failed to inflate a tubeless set-up on the first try with a floor pump after painting the beads with moldbuilder latex.
It's MUCH cheaper than a compressor and available at hobby stores and at Amazon. If you search here I have posted pictures of the product and process and better descriptions of how to get your hands on some.
MAJOR improvement in my tubeless set-up experience since starting to use it. I now use it on every tubeless set-up I do, whether it needs it or not. I don't have any data, but I have the perceived benefit of a bead "glued" to the rim, and nobody I know has burped a tire set up this way.
I would say a compressor is a necessary evil for tubeless.
That aside, you should try mounting the tires, with a tube, and inflate them at a high pressure - 45 or so and let them sit for a few days. This will stretch the bead and tire and you might have better luck inflating tubeless with a floor pump.