Tubeless tyres

07Lapierre

I have a set of wheels with tubeless tyres. Problem is, I let the air out and the tyre is no longer "sealed" with the rim.

I have a standard floor pump, but I can't inflate the tyres. Is there a "knack" to inflating these tyres? Any tips?

Cheers.

Luxman

Isn't there a special valve that seals it at the point? Is there sealant inside the tyre? Is it a new setup?

07Lapierre

Yeah they are new wheels and tyres. They came on my wife's new TT bike, but she upgraded the wheels. These wheels have been hanging in the garage since last March, so I deflated the tyres (I didn't realise the were tubeless).

Plastik

If you've broken the seal between tyre and rim and can't inflate with your track pump you'll have to put a tube in. The track pump can't release the volume of air needed at a fast enough rate to seat the tyre on the rim. You'll need a compressor, or one of the tubeless variants of track pumps with the additional chamber, or there are some home cooked solutions I've seen with empty plastic 2l coke bottles etc that you'll see on youtube.

CantGetNoSleep

I've also heard that you might be able to seat them with a CO2 cannister but I've never tried this myself

07Lapierre

I was thinking of using lighter fluid!


https://youtu.be/63RAFk1Ae84

07Lapierre

CantGetNoSleep wrote: »

I've also heard that you might be able to seat them with a CO2 cannister but I've never tried this myself

Yeah I might give that a go.

nak

CantGetNoSleep wrote: »

I've also heard that you might be able to seat them with a CO2 cannister but I've never tried this myself

Sealant can be wrecked by CO2.

Sealant may need to be topped up or replaced if dried out.

crosstownk

You need to add air quicker than it escapes in order for the tyre to seat on the rim. You can do this with CO2 but don't add sealant just yet. Once the CO2 has inflated the tyre and seated it on the rim, then you can deflate, add sealant and reinflate with air.

Pumps with a pre-charged chamber are ideal for this and while I'm a newbie to tubeless, I have so far managed with a regular floor pump.

Effects

Where are you based?

I deflated mine to fly, and then didn't get around to reinflating them. Cycleways managed it for me with a couple of CO2 cannisters.

I've since bought a booster pump, but haven't had cause to use it yet.

t1mm

Bring your wheel to a petrol station. Quick dart with their compressor and it should re-seat

Effects

t1mm wrote: »

Bring your wheel to a petrol station. Quick dart with their compressor and it should re-seat

Most stations have those systems where you have to select tyre pressure on the machine these days. Doesn't work so well when trying to seat tubeless bike tyres.

07Lapierre

Thanks for the offer @effects, but If needed, I’ll invest in a new pump as I’m sure I’ll needed as most wheels nowadays are tubeless ready at least.

Luxman

My (new to me) bike has tubeless ready wheels but there are tubes installed by previous owner. I haven't switched over yet. But if the wheels deflate enough will I have the same problem as 07Lapierre?

Whatwicklow

Take the valve insert out and slightly lift the wheel as you pump (so the tyre sits as evenly as possible) and go like the clappers on the pump, if should pop up. If that fails lube up the rim with a tiny amount of fairy liquid and they again.

07Lapierre

Only if you go tubeless.
In fact I might simply remove the valve, give the rim a bit of a clean and fit regular tubes.

crosstownk

07Lapierre wrote: »

In fact I might simply remove the valve, give the rim a bit of a clean and fit regular tubes.

Yeah, I thought the same but the idea of a self sealing puncture was too hard to resist. I fitted tubeless less than a month ago and with less than 500km it's hard to comment from a puncture perspective but they roll really well and are more comfortable than my previous clincher/latex combo. I'd the added benefit of not needing rim tape.

Give it a go.

byrnem31

I had tubeless in my my bike as it was new. Went back to tubed clinchers and much prefer them. Way less hassle to use and I'm not pumping them up every few days.

07Lapierre

crosstownk wrote: »

Yeah, I thought the same but the idea of a self sealing puncture was too hard to resist. I fitted tubeless less than a month ago and with less than 500km it's hard to comment from a puncture perspective but they roll really well and are more comfortable than my previous clincher/latex combo. I'd the added benefit of not needing rim tape.

Give it a go.

puncture sealant is what I don't like! The thought of that gunge inside my tyres is not appealing TBH. I am interested to see if I notice and difference regarding how they roll, so yeah, I'll give them a go.

ballyharpat

I had tubeless on my last road bike, the new wheels arent tubeless.
Tubeless is my preferred way to go, I still have tubeless on my mtb and my gravel bike is going to be tubeless.
I bought an inflator, it does a great job, but even without it, there are a few things I did to make it work prior to that.
I seated one of the sides completely. I hung the bike so that the tyre is not resting on the ground. As has been said, the co2 works very well also. If it has been unseated, youre sealant is already dried out, so you will need to put in new sealand anyway, you can do that after pumping/seating them, keep the tyre raised, remove the valve core, use stans sealant kit, or I even prefer using a very small syringe to go straight into the valve.

I prefer this sealant https://www.wiggle.co.uk/effetto-mariposa-caffelatex-tyre-sealant-1000ml?lang=en&curr=EUR&dest=6&sku=5360739853&kpid=5360739853&utm_source=google&utm_term=&utm_campaign=Shopping+-+All+Products&utm_medium=base&utm_content=mkwid%7CsDDSfAUNX_dc%7Cpcrid%7C315060536570%7Cpkw%7C%7Cpmt%7C%7Cprd%7C5360739853ie%7C&pgrid=63493421220&ptaid=pla-836105498808

stones81

Do you need to clean out the old sealant or can you just top it up every few months

saccades

stones81 wrote: »

Do you need to clean out the old sealant or can you just top it up every few months

I just top up.

fat bloke

Did the OP manage it I wonder? I'm keen to know which approach worked!