Road Bike, Cycling Forums banner

1 - 10 of 10 Posts

·
Registered
Joined
·
12 Posts
Discussion Starter · #1 ·
I own this bike: https://www.giant-bicycles.com/us/contend-sl-1-disc-2018

Factory tires on it, tubeless.

They are a bit deflated after not having been on the bike in awhile.

I've never had tubeless tires before, as I am a beginner.

Can I pump up these tires with a regular old floor pump like I used to do on my old bike with tube tires? If so, do I need a special valve on the pump?

Or, can I not do this, and if not, what do I need to do to get the tires back inflated fully?

Thanks in advance.

-Wolf
 

·
'brifter' is f'ing stupid
Joined
·
15,435 Posts
Can you pump them up w/ a regular pump?

Maybe. Depends on a couple of things. Generally floor pumps don't put enough air volume into the tire quickly enough if the bead has come unseated. If the tubeless sealant has dried up inside the tire you'll have to add some. I'd just try inflating them and see what happens. If it doesn't work you know what to do. It's impossible to provide an answer that's 100% over the interwebs.
 

·
gazing from the shadows
Joined
·
27,225 Posts
Can you pump them up w/ a regular pump?
Yep, mostly.

I always have been able to. Sometimes with no issue (no air but bead still set or mostly set), sometimes with using my hands to get the bead as set as possible before using the pump (when the tire has been off the wheel, or when adding sealant). Pump really fast for a few pumps, then normally, that's worked for me.

An air compressor does the trick. If you don't have one, you can take it to a gas station and give it a quick blast to get it started, then finish with a hand pump. Might require getting an adapter for the presta valve, which are cheap and good to have in any case.
 

·
Russian Troll Farmer
Joined
·
3,273 Posts
In the immortal words of Declan McManus:

Pump it up, until you can feel it
Pump it up, when you don't really need it
 

·
Fred the Clydesdale
Joined
·
1,807 Posts
If you can't get them aired up with a pump you have choices. Take your bike to the local gas station that has air, your local bike shop or use a CO2 cartridge inflator. I bought an electric air inflator and it works fine.

If you let it go until the tire is completely deflated, you'll need to replace your sealant.
 

·
'brifter' is f'ing stupid
Joined
·
15,435 Posts
If you can't get them aired up with a pump you have choices. Take your bike to the local gas station that has air, your local bike shop or use a CO2 cartridge inflator. I bought an electric air inflator and it works fine.

If you let it go until the tire is completely deflated, you'll need to replace your sealant.
What? That is definitely not a must.
 
1 - 10 of 10 Posts
Top