Tubeless Tyres -"saying the same things about tubeless tyres over and over again" Hippy read the first f**king post

You only need to cut a small X in the rim tape for the valve. Could also be mismatch with your choice of valve and rim? I've only used one combo and it's still holding air after a month with no sealant.

Also is it road or MTB? How many layers of tape?

Cut, haha that's funny I just jam the valve stem straight through it

That's just how I roll

How did you tighten the valve lock ring?

Fingers, then a small pair of pliers

I'm move of the heat up a crosshead head screwdriver and use that to melt through the tape.

Ok, it's fixed

3 Attachments

I had a stupidly expensive ~100mm valve. I'd rather sacrifice the cheap tape than fuck up the valve.

Pliers? It's only supposed to be hand-tight.

Doesn't look like you pushed the air out from under the tape.

Rear one done, now front one still resisting.

Nope, I give up, cannot get the valve to seal on the front.

This is driving me insane.

This is driving me insane.

This threads alter ego

What valves are they? What rims are they?

ENVE CX 29er rims, Stans valves, the tape recommended from this thread.

I'm sitting here listening to the fucking tyre slowly going down.

Are you sure it's from the valve 'seal'?

I thought one of my tyres was leaking from the valve but it was actually just along from it.

Perhaps that rim/valve combo is bad? Do these look a diff shape to your Stan's?
https://www.universalcycles.com/shopping/product_details.php?id=56286

This mentions special valves, but perhaps length is what theyt're talking about:
http://forums.mtbr.com/wheels-tires/enve-tubeless-kit-826784.html

Did you do up the valve core properly?

.

http://forums.roadbikereview.com/wheels-tires/having-trouble-sealing-tubeless-valves-new-carbon-clincher-wheels-343336.html

"If you have air leaking at the valve area the problem is almost definitely that you don't have the inside of the rim sealed up well enough. Any leak in or around the tape inside the rim will cause air and sealant to travel through the rim and out the biggest gap, which is the valve area.

If you set your rims ups tubeless with tape then the tape did not adhere well to the carbon and air gets underneath it. When setting up carbon rims tubeless install a tube first and inflate to 100 psi and let set for a while to compress the tape to the carbon better. Even then you will still get some leaking, but these small leaks will seal instantly when sealant is shaken about."

See also: https://www.notubes.com/troubleshooting

When I said above it doesn't look like you've squished your tape down properly, perhaps that's the issue, not the valve.

I've set the bike on fire now.

So far my tubeless experience has been painless*.

*I've not ridden it yet

For some reason it's stopped leaking now. I don't trust it.

it's stopped leaking now

The fire created a good seal?

yeah! okay really tempted, might order them today.. they dont wear down too quickly then do they?

what stuff do I need or can someone redirect me to a good article telling me what I need.
I could buy the schwalbe tubeless "pack" but seems to expensive!

Take them to a bike mechanic? Worth every penny.