I've just put the tape on one of my Crest rims, the STANS how-to video says to inflate a tube over this to help stick it to the rim. I just tried this and at about 30psi my tube burst.
Not wanting to repeat the same with another tube - how important is it to do this step? I'm poised with the latex......
did you put the tube in a tyre, or did you have a comedy inflated inner tube moment?
tube was in a tyre, still fairly good comedy value when it popped though 🙂
If the tube burst at 30psi, surely something caused it to burst - sharp edge (rim/tyre)?
it ripped next to the valve, can't find a sharp edge though
I never didthis with mine and had no problems.
Don't actually recall reading that bit in the instructions..
The most likely explanation is that the tube wasn't fitted properly.
I didn't do it either, I just worked my way around it with my thumbs pressing it down, never had a problem with them tbh..
Check there are no sharp burs around the valve hole which I assume you had to file a bit to remove tape there.
OK, now I'm trying to fit and inflate the tyre and I'm having a right struggle. Can't get the bead of the tyre to seat into the groove in the rim. When I put the tyre on it sits in the centre section of the rim and I just can't get it out from there. It's a Maxxis Crossmark. I've got a right mess of sealant now and am wishing I had stuck with inner tubes.
Arrgghh!
And the Stans video makes it look so easy. Should I be able to pump up the tyre with it sitting in the central section of the rim (the "drop channel")? Maybe my track pump just isn't up to it.
If your using a track pump take the valve core out, you get a much larger volume of air to blow the tyre on the rim, don't use any sealant just blow the tyre bead on, once it's on put the core back in, undo a small section of the tyre and pour the sealant in then, then pump it back up and spin the wheel to distribute the sealant
Or use a compressor..
Thanks I'll try that. Numpty question now - how do I remove the valve core? The ones I have are removable but I don't know how they come out.
If they're presta then use some needle nose pliers just under the screwy downy bit on the end and unscrew..
Cool, done it, thanks!
Tyre still won't budge out of the centre of the rim. Will have to give up for now and try a compressor when I have the time. Bugger!
Co2 inflators work..sometimes......
Edit and if it does go on you can inject the sealant through the valve core so you don't have to undo any of the bead..
No sealant and inflate with Co2 if you have it, may take a couple of canisters to succeed.
Leave as long as possible before adding sealant as above.
If you have a suitable syringe knocking around then you can remove the valve to add sealant, saves having to get the tyre off the rim again.
(Khani's edit just covered that)
If you haven't got any syringes or the like hanging about to inject the sealant, then get a 2oz bottle of Stans, use it and then refill with more from the bottle to put some more in. It works just as well as the fancy injector that costs a tenner.
Definitely do as the instructons say as regards to the amount to put in. ie, if you're running tyres bigger than 2.0 then put 1.5-2 scoops in.
OK thanks may have to go for cannisters. What a faff.
Is there any reason why the tape has to be yellow? Wouldn't blue or green tape work just as well. Or maybe better? I'm guessing it's something to do with infra red radiation or similar, but it seems counter intuitive and causes and awful lot of hassle. Maybe I'm just being cynical, but I'm thinking Stan's specify a certain colour to make sure you buy their tape rather than a more readily available option. Have you tried red tape?
I used some caffe latex tape that was red 😀 and peanuts from crc at the time, they didn't have any yellow stuff in stock,
I'm just wondering if the flippin tyre is ever going to fit. Don't really want to buy CO2 just to do this, seems daft. Will try a different tyre tomorrow. Other folks seem to have fitted Crossmarks OK, so don't know why I'm having so much bother. Maybe a new day, more soap and a bit of luck will do the trick. This is only the rear wheel I've been trying, will have a go at the front with a nobby nic tomorrow.
OK so I've only done ghetto setups but you get similar issues. Fit the tyre with a tube, inflate to 60psi and leave over night in a warm house. This helps the bead fit to the wheel. Remove tube and inflate without sealant. Then add sealant, re-inflate and swish to seal.
It helps if you hang the wheel off something (I use a door handle) while your pumping, and if your using a track pump you have to pump like a bastard...then pump harder like a desperate bastard, if your arms still work after 30seconds of pumping... your not pumping hard enough.......
The yellow tape is different to normal electrical tape...you can pull the yellow stuff bar tight to get a tight seal, try that with normal tape and it will just stretch/snap. I'm not saying its needed, but it is different.
Regarding the tyre struggles, try inflating the tyre with a tube (again) and leave it for a few hours. This is particularly useful if its a new tyre, or the tyre has been folded. It will help straighten the bead and makes it easier to seat.
Also, make sure you have the correct Stans valves, the rubber seal is wedge shaped. Normal UST valves have a rubber base the size of a 5p piece, and stop the bead seating. I bought some second hand ones with the wrong valves, god knows how the previous guy got them seated as I can't even get the bead seated by the valve, let alone get them inflated. He must have managed it as they came with tyres fitted, and he had renewed the sealant for me.
Success! Feel ridiculously chuffed that I have 2 tubeless tyres ready to go, after yesterdays faffage today's efforts went pretty smoothly. The trick (as described above) was to put a tube in first, inflating that to get the bead to engage in the rim. Then I released just one side of the tyre and took out the tube. With one side already seated, it was pretty easy to get the other side done with some furious track pump action.
Thanks for all the tips folks, couldn't have done it without you.
Too late for you now (next time perhaps) but I can confirm that [url= http://singletrackworld.com/forum/topic/ghetto-tubeless-inflator-total-cost-9p ]this works well[/url] and will save you the cost of a cartridge or heart attack by track pump.