-
• #1977
I rode mine on 45/50 psi last week mainly due to air leak/slow punctures, and agreed that although in a straight line it's all very comfortable, when you start turning, you can feel the extra resistance, especially on wet surfaces. 85 seems to be a happy medium for me.
-
• #1978
30c g ones...82kg
I think I'd start at 4.2/3.7 bar F/R at that weight
-
• #1979
What is the tester approved tubeless tyre pressure chart/formula?
-
• #1980
Quick question because I know @cake is bored of me hassling him.
My first foray into tubeless ended poorly when my handlebar bag failed, rubbed on the mudguard, which rubbed on the front tyre, and pulled out an anchovy that hadn't been trimmed flush with the tyre.
When it deflated, some sealant sprayed out, but I mean hardly any, however I had to walk 2.5 miles home, so would the rest of the sealant just dripped out?
It's still seated on the rim, I've got a tubeless repair kit to plug it again, if I inflate it, it inflates nicely, and takes maybe 60 seconds to lose pressure out of the hole.
The question is do I need to put more sealant in or can I just plug it?
-
• #1981
The question is do I need to put more sealant in or can I just plug it?
Both - why would you not put more sealant in?
-
• #1982
My acid test is, if you can't hear sealant sloshing around when the wheel's shaken, it needs moar.
-
• #1983
Well, here be a tale of laziness:
Cake mounted the tyres for me and we used his sealant, so I don't have any at home. I can buy some but didn't know whether I actually needed to.
Also, I really don't want to take the tyre off so I was hoping I could get away with not doing that.
-
• #1984
You might not have to take the tyre off. If you have removable valve cores, deflate the tyre slowly, and inject the sealant you've just bought through the valve. With some luck, the tyre won't need reseating.
-
• #1985
Well it's flat right now because it's empty. It deflated pretty rapidly when it first happened, but when I inflate it with my track pump it seems it's still seated.
-
• #1986
Also if I'm taking the tyre off I might as well patch it from the inside rather than faffing with an anchovy?
-
• #1987
@mdcc_tester, @finger_jockey
thanks.
I dont think theres a shop round these parts that has a track pump and will be open when I leave. will give it q couple of extra pumps with the mini pump and trust itll get me home.
if you dont hear from me in here anymore pray for me. -
• #1989
Leaking would point to problems sealing, either moar rim tape or valve sealing. I wouldn't want sealant being used up to seal leaking rims/ valves
-
• #1990
Cheers, I guess my laziness will have to be overcome.
-
• #1991
Welcome to the world of Tubeless.
-
• #1992
I think the leaking is from the hole that was mentioned. Plug the hole, tell yourself you'll buy some more sealant later to squirt though the valve hole, forget and it'll be ok until next puncture.
-
• #1993
85 in 30c G-Ones, happy medium? That should be about the max recommended pressure
-
• #1994
What happened was it got a puncture that was slowly losing air. It was small so I thought it might seal up eventually.
I carried on riding and topping up air pressure from time to time but I think I must have ridden it on too low pressure as it started losing air quicky; that's when I noticed that air was coming through the sidewall.
When I took the tyre off to put a tube in, there was lots of sealant inside but it had gone into a gooey sludge which was stuck to the tyre. Only a week old.
-
• #1995
What is the tester approved tubeless tyre pressure chart/formula?
Look at what I use, reduce for bigger tyres, reduce again if the subject is lighter than I am.
Schwalbe say 80psi max for 30C G1Speed, and also 70kg max load. If you work from that and assume 10kg bike/gear and 60/40 load split you get 0.6x(92/70)*80=63psi or 4.3bar rear and 2.9bar front. I think I lean on the front a bit more than that, it depends on morphology/riding position/bike geometry. It also depends on terrain, riding style and personal preference, so whatever I say is just a starting point and you should adjust until you like it. Some people actually like making their bikes slower and less comfortable, and who am I to tell them they are wrong if they always pump everything up to the highest number written on the sidewall?
-
• #1996
Yes, sorry I don't think I explained that very well, some sealant leaked out of the hole as it rapidly deflated, it hasn't leaked out of the sidewalls at all, the tyre is still seated on the rim.
So the lazy option of anchovy and squirt sealant through valve hole is technically available if I want to be lazy?
-
• #1997
yes.
-
• #1998
Yay I can be lazy! I love being lazy.
-
• #1999
In case anyone wants to have a feel good "I told you so" moment, I definitely needed sealant because all the air leaked out of the valve hole.
-
• #2000
I got my hyper voyagers on to my tubeless rims last night.
Hopefully throwing sealant in them tonight.
/whatafuckingupdate
had a roll in to work for the first time this morning on tubeless 30c g ones.
did the "max lowest pressure on tyre for tubeless" thing I.e. 45 psi.
felt sketchy af.
is this normal for people going tubeless for the first time? would love to add a bit of pressure though but evade a blow off and related gunk everywhere/my face on the tarmac.
im 82kg. waddayathink peepz?