Tubeless grief!

hopper1

Is it the tyre, or the rim...
Had some OE RoRo's on DT Swiss (tubeless ready) rims.
In view of the forecast for Sunday I decided to change tyres before a race.
Off came the RoRo's and on went a XR Mud tyre.
It was an easy fit on the rim. Fooked if I can get it inflated!
The RoRo's weren't easy to inflate either, compared to my StansCrests with RoRo's.
But is it the rim, or the tyre (not used the Mud's before)?
I could hurl the lot in the friggin' bin. Boll0x to Sundays race...
Rant.

cooldad

Tubes.

devbrix

Been there last weekend. You have my condolences.

hopper1

cooldad wrote:

Tubes.

Yep... Another day, when I don't feel like removed all it's feckin spokes with a sledge hammer! :evil:

hopper1

devbrix wrote:

Been there last weekend. You have my condolences.

Did you solve it?...

cat_with_no_tail

What are you using to seat the tyre? Just a normal track pump?

Is the XR you're using tubeless ready then?

scale20

Are you using a compressor and taking the core out of the valve to maximize the volume of air getting in just for the initial tyre seating?

allthegearnoidea

Diiy compressor for seating duties.! Otherwise pop to the local tire shop and borrow there compressor, _pack of cookies will help! ;-)

Ignore the philistines and the out dated tube coments! ;-)

hopper1

Cat With No Tail wrote:

What are you using to seat the tyre? Just a normal track pump?

Is the XR you're using tubeless ready then?

It says must use sealant, or tube...
Too cold and fooked off, to bother now... maybe during the week I'll revisit.

cat_with_no_tail

So what are you using to inflate they tyre?

As said above, a compressor, or even a home-made "pop-bottle compressor" should work. As should Co2.

stubs

If your trying it in a freezing cold shed that wont help. The rubber can be too stiff to seal get it all warm and it should pop on.

Oh yes and tubes are a useful invention that could help. I tried tubeless and got hacked off with pissing about with sticky snot and compressors just to swap from a mud tyre to semi slick so after a year went back to tubes.

70\ʹspenguin

Pop a tube in and inflate until the beads are set into the rim. Deflate and carefully remove the tube leaving one bead seated. Try again.

Check your rim tape also to make sure there are no small rips.

Warm tyres help!

scale20

I have found in the past that you need to put folded tyres in initially with a tube, give it time for the fold crease to iron out. Sometimes if you don't do that the crease may hinder a nice seal.

hopper1

Having calmed down now, I will try again...
First, with a CO2 bottle (as I need to test my new inflator), then with a tube...
The tyres are warm enough, the garage is integral and not much cooler than the house
Wish I'd have thought about the CO2 yesterday, as it would have been good to race today :roll:

WindyG

Hopper where in Norfolk are you, I've got a compressor here you could try.

hopper1

WindyG wrote:

Hopper where in Norfolk are you, I've got a compressor here you could try.

Cheers, mate, I'm in Bradwell, nr GY.
I think I'll buy a compressor, as they don't appear to be that expensive.
Not sure what I'm looking for, though...

WindyG

I'm in Hingham near Wymondham, I just have a cheap compressor I got from lidl for about £60 a few years ago. Offer is there anyway if you need it. Have a look at places like Machine Mart.

The Spiderman

Have you tried all the little tricks, like squashing the tyre so that the bead is pushed into the rim, using plenty of washing up solution to lubricate the tyre bead and so on? Is it the initial inflation that won't hold air?
Some good fitting tops if you watch the no tubes videos.

mrmonkfinger

wise man once say, fannying about with hand pump on tubeless tyre lead to much unhappiness

1 remove valve core, add sealant
2 connect compressor
3 stand back and admire the ease with which the tyre was seated
4 pop valve core back in, re-inflate to desired psi

cooldad

Did I mention tubes?

jairaj

If you have faff about so much I'd rather just stick a tube in. And yes I use and love tubeless tyres. but if I can't get a tyre inflated with anything more than a bit of furious pumping then its simply not worth it.

bikeleasingco

I've had this problem myself. Lot's of arm pumping with no result - yep - lots of potential for spurious jokes there! I've left the door open for you

If you're using tubeless specific rims I believe that there is a small double ridge running along the inside of the rim, either side of the valve. If you're not - then good luck to you! I've attached a picture that illustrates it.

Presuminig you're using a Tubeless specific rim, basically, prep the tyre with sealant, squish the rim bead so that it sits fairly well on these ridges, give it a whirl to get the sealant around it and then pump like fury.

Evntually, you get that reassuring bang and the bead sits on the rim a treat. Keep pumping to the desired pressure.

njee20

If you're using tubeless specific rims I believe that there is a small double ridge running along the inside of the rim, either side of the valve. If you're not - then good luck to you! I've attached a picture that illustrates it.

DT don't do UST rims, nor do they actually do 'tubeless ready' rims in a Stan's way - they've added that moniker to jump on the band wagon really! You can convert them, but IMO neither Mavic nor DT work as well as Stan's when converted, as you've found they're usually just too loose.

Personally I find Stan's better than UST as well, but YMMV.

bikeleasingco

Hi njee20,

Here's a few from DT: http://www.dtswiss.com/Wheels

Look at the close up of the XM1550 tricon and I think that you'll see the ridge I'm talking about - albeit more like a smooth sided valley on the DT Swiss rims.

mrmonkfinger

jairaj wrote:

If you have faff about so much I'd rather just stick a tube in. And yes I use and love tubeless tyres. but if I can't get a tyre inflated with anything more than a bit of furious pumping then its simply not worth it.

You're welcome to stick with your furious pumping.

I will stick with my effortless coke bottle compressor.

allthegearnoidea

mrmonkfinger wrote:

.

I will stick with my effortless coke bottle compressor.

This!

hopper1

Shelled out on a compressor... 5 minutes after setting it up, the tyre was inflated, and the front tyre was changed out, too.
Still think I may jump on the offer presently touted by Superstar, for another Crest/ Trizoid wheel build.
Much more confidence inspiring

Just love that compressor, though
Need to sort out a specific fitting for inflating Presta valves, though...

brindlescoops

Don't use Co2 as it sends the sealant off much quicker than air, also use some of the sealant as lubricant to seat the tyre on the rims, otherwise, you can contaminate the seal and with soap and hinder its life / performance, plus it will seal the rim almost instantly. Finally add some glitter to the solution in the tyre to help plug the bigger holes.

Inflation....

Get the tyre on the rim, lube all around the edges and slowly spin the tyre by hand round the wheel to get a good coverage of lubricant solution. finally, hold the wheel in one hand so the bottom isn't squashed by the floor and pump like mad on your track pump with the other, as soon as you get to 5-10psi, you will get a good enough seal and then the rest will pop on as you hit around 40psi.

I can change a tubeless tyre in the same time I can change a tubes tyre now with a track pump, just takes a bit of practise.

Simples.

DodgeT

BrindleScoops wrote:

Finally add some glitter to the solution in the tyre to help plug the bigger holes.

Sure its not so that you make an impressive glittery splurge all over the trail when you burp

allthegearnoidea

Ah! But the glitters been shown not to actually work that well, Tumble dryer fluff has been Much better!!! - seriously!!
I made my own goo as stans whilst good was pricey in comparison, £20 for a litre, I made 3l for a tenner!

lostboysaint

Hmmm, I've got XR Mud and the original Mud X on two sets of Mavic EN521 converted and they've both blown up no problem at all, both on the initial go (no latex) and then the "proper" inflation (with sealant). Kind of suggests that it's a rim problem or that you're just not getting the air in quick enough to get the seal.