Can’t really answer your question as my tubed tyres don’t leak at all .
Why did you fuck with it ??? You always have to ‘fettle’, don’t you ?))
He would be better off with mousses
Losing pressure
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He would be better off with mousses
I’ve done around 200 miles since the conversion.
Ah, ok, but the front was almost flat. It’s the first time that’s happened since the conversion to tubeless. I’ve checked the spokes and they’re all ok, could it be the valves? There’s a small bit of play in them, so should they be as tight as possible on the wheel? I know that may sound like an odd question, but they may be designed to not be, to protect against damaging the wheels?
Maybe little sealant got in valve, and valve not operating correctly.
Ok, will give that a go. I’ve noticed since going tubeless that it feels much nicer off-road, so will stick with tubeless.
Will see how much pressure is in them tomorrow morning.
Yep, that’s the next step, if they deflate overnight.
Pump them up hard, then wind the valve down harder. My sons kept losing pressure and it was cos the valve was slightly lose. Did that and it’s been fine ever since. 
It may be the same with yours. Gotta be worth a try shirley?
It may be the same with yours. Gotta be worth a try shirley? Pump them up hard, then wind the valve down harder. My sons kept losing pressure and it was cos the valve was slightly lose. Did that and it’s been fine ever since.
Will try that, ta.
This answer cuts through all the other comments. Simple , and it will work
Fairy liquid so he doesnt damage his skin 
Well?
Oh yeah, forgot about this one.
I pumped them up hard on Sunday night, and tightened up the valves a bit more, and they seem to be holding their pressure better. The front has dropped slightly, but not by much.
One thing I’ve noticed since going tubeless is that the tyres tend to compress a lot more under heavy braking or cornering on tarmac. We live in a valley, so coming down the hill and turning at speed has become a bit scary!
Oh yeah, forgot about this one.
I pumped them up hard on Sunday night, and tightened up the valves a bit more, and they seem to be holding their pressure better. The front has dropped slightly, but not by much.
One thing I’ve noticed since going tubeless is that the tyres tend to compress a lot more under heavy braking or cornering on tarmac. We live in a valley, so coming down the hill and turning at speed has become a bit scary!
To answer the initial problem first, after a few months of my riding first tubeless tyred bike, I was disappointed to find it kept losing pressure on the back, despite doing everything that has been mentioned in previous posts. I took the tyre off, to find that the sealant had dried up, but also the tyre had plenty of thorns in it ( found this out the painful way) After removing the thorns and the majority of the dried out sealant, I put fresh in, blew it up, and it was fine for another few months. This has happened a few times now, one of the few cons of tubeless set ups.
As for the second, you have less "rubber" in your tyre without the tube, so there will be a very slight difference in compression. If it bothers you, increase the pressure. I run mine at 18 to 20 psi in the dry, and 13 to 15 in the wet.
Mark
Sorry to state the obvious... Put a tube in it???
Dried up?! You need to ride it more!
I'll be changing tyres long before the sealant dries up, at this rate!
The rubber theory makes sense.
No. Tubes are the work of the devil, apparently, and should be removed immediately.
No. Tubes are the work of the devil, apparently, and should be removed immediately.
After a similar episode, I went back to tubes. Still with tubes and staying with tubes!
If these keep losing pressure, I’ll be doing the same.
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I said in your other topic tubeless wasn't/isn't the be all and end all that some would have you believe. Since lockdown me and a mate have done around 500 miles each, neither of us have had a puncture yet.
So you try about 5 different saddles and end up going back to the one supplied with the bike and now fuck around with tubeless and may end up back as you started ?
Which gene is it that stops you using a motorbike/cycle etc as supplied without having to continually try improve it, often with crap results ??
So did you investigate where the leak/s were?
So you try about 5 different saddles and end up going back to the one supplied with the bike and now fuck around with tubeless and may end up back as you started ?
Which gene is it that stops you using a motorbike/cycle etc as supplied without having to continually try improve it, often with crap results ??
3 seats, actually.
And just about everyone on here and the mtb forum rave about tubeless, bar a small handful, so as I mainly ride off-road, thought it would make sense. Obviously not.
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