Air loss

newrider

newrider

New Member
I had a question about what is "normal" air loss. I went tubeless last season and I noticed this year I am losing quite a bit of air in my rear tire. Seems every time I get on my bike I notice more air loss. I thought it was the weather and evaporation of the fluid with the recent hot spell but then I noticed my front tire was no where near as flat as the rear. I then thought I had a slow leak so I worked the tire around trying to "fill" the leak with the sealant. This was a no go either. I put air in every ride but like I said it seems to work its way out by the next ride. I am about ready to take the tire off and release it but I have never done this and I am a bit hesitant as I heard it can be quite a project getting it back on after the extra tape, extra needed for the sealant. Any ideas on what else to check or general tips on removing/replacing the tire? Thanks.
 
Maybe the valve stem or core is leaking? Pump it up and then use soapy water and watch for bubbles. Maybe that will help.

Maybe your tire is just worn out? I notice as the tires wear they don't hold air as well as new tires. Maybe the bead starts to break down or the sidewalls. But you should be checking the pressure before every ride anyway.
 
Define "quite a bit". Some tires are more porous than others and some seal up better than others. I've had tires that didn't lose any air, but my current setup loses about 5-10psi a week.
 
RU Chris said:
Define "quite a bit". Some tires are more porous than others and some seal up better than others. I've had tires that didn't lose any air, but my current setup loses about 5-10psi a week.
Click to expand...


I am probably loing 10-15psi a week, which sounds about like what you are losing. My tires are new (relatively). If this normal then why I am not losing as much in the front. My old tubes never lost anywhere near this.
 
TimWarchol said:
usually tubeless kits require to be maintained every 6 months and be resealed... so if that will do the trick
Click to expand...

Any tips on what this maintenance requires. I am not all that mechanically inclined - hence the hesitation about removing the tubeless setup. no doubt I can get it off but putting it back on is a another story altogether.
 
Is there any sealant left in the tube? When you shake the wheel do you hear anything sloshing around?

A lot of people just seal and leave it alone. Often times when you get a hole the sealant just pisses out anyway.
 
pump it up with 45 psi and stick it in the tub, see where the bubbles are coming from. Go from there
 
newrider said:
Any tips on what this maintenance requires. I am not all that mechanically inclined - hence the hesitation about removing the tubeless setup. no doubt I can get it off but putting it back on is a another story altogether.
Click to expand...
This sounds like a good opportunity to learn. Setting up tubeless tires isn't that difficult, it just takes some patience. If your tires have been on for more than a couple of months and you can't hear any sealant inside it may be time to add some more sealant. I would pull the tires off and see if you have dried up sealant inside, clean that out, clean the dried sealant off the beads off, then remount, add sealant, and re-seat.
 
I'll stick with my maxxis ultra light tubes. they hold air and are easy to maintain. plus, they are way less expensive.
 
You must log in or register to reply here.
Back
Top Bottom