When Should You Replace Tubeless Sealant? | Maintenance Monday

If you run tubeless tyres, you have to replace your sealant from time to time as it dries up and stops working. But how often do you need to do this? Ollie explains how to check and replace your tubeless sealant in this week’s Maintenance Monday video!

Chapters:
0:00 Intro
0:37 How Long Does Sealant Last?
1:21 How To Check Your Sealant
3:38 Replacing Tubeless Sealant
5:46 Outro

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What other maintenance videos would you like to see us make? Let us know in the comments below! 💬

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[gcntech]

What other maintenance videos would you like to see us make?

[woodsdavid]

I topped up my tires the other day just as this video explained and it worked like a charm. Thanks Ollie for the clear instructions. The procedure took about 5 minutes ー no fuss, no muss.

[metubenoggin]

I came with a question in mind, you answered it, clearly, unambiguously. I thank you and bow in your direction.

[stevedavis]

Another indicator that sealant needs to be topped up is when your tyre starts to lose more pressure than normal between rides. (Although you probably should have replenished it before this point!)

[mattlloyd]

Another tell-tale sign I had before being more on top of changing the sealant was when I spun the tire I could hear a rubber ball bouncing and rolling around inside. All of the sealant had dried and collected. Bonus free bouncy ball, at least.

[GC]

That's one of the most practical and helpful videos I have seen in my quest to convert to tubeless. Thanks.

[diezrosales]

Thank you so much for this video, Ollie. I've just changed the sealant on my Liv Langma Advanced for the first time ever and I think it's worked a treat. I wouldn't have had the confidence to do it without having watched this video first. 👍

[jn]

You can also remove the tire and give it a good shake; if you don't hear sealant sloshing around then it's dried up. You do need a quiet room to hear it, and if you've blown your hearing this won't work.

[_SpaceDad]

Keep a supply of new valve cores handy to replace old ones clogged with dried-up sealant. Makes filling tyres with air alot easier with unobstructed valve cores.

[Music-pqcm]

Hooked rims
Clinchers
Tubes

No mess no fuss

[derek]

For anyone new to tubeless definitely check visually inside your tire after 3-4 months !! Depending on your local climate and type of sealant used you could have a dangerous situation on your hands ! Especially in the case of latex based sealants imagine how a ball of that stuff could effect a tires compliance descending hi speed on sealed road corners. Never mind the out of balance wobbles as well ! Once you understand the limitations of your chosen setup then you might abbreviate to dipstick methods..

[ScefingScyld]

I'm done with sealant. Latex tubes for road tires, TPU for anything bigger. 45gr TPU tube in a 650b 47mm wide tire is amazing and rides better too.

[buster.keaton]

For Stan's "No Tubes" sealant, I've found that the sealant (pink, gummy stuff) dries on the inside of the tire, leaving a puddle of clear liquid in the tire that has little or no sealant in it. Hence I typically want the clear liquid out of the tire before adding "fresh" sealant.

[shaunsten]

😂 best commentator of the GCN GROUP kept it interesting funny and full of important information as usual. Thankyou

[em]

Great video! Clear and concise instructions! Given the high costs of a bike and the bicycle maintenance, associated with those bikes decided that it was time that I start doing a lot more of the basic maintenance myself. Videos like this are VERY helpful! Thanks!!

[paulannable]

Just add and top up. Music to my ears, thanks! I’ve been dreading the rigmarole of removing/resetting my tubeless MTB tyres.

[johnwolff]

At the end when adding sealant do not rotate the valve all the way to the 6 o'clock position, stop at 3-5. This allows the sealant to run down hill and not be pooled at the valve. When adding large amounts sometimes the tire will inflate slightly and when you remove the bottle the pooled sealant can push back out when the tire goes back to zero pressure. Had this issue with the green goop in mtn bike tires.

[PoulHansenDK]

When releasing the air, do it in the 9 o'clock position or you might get sprayed with sealant!!

[MrNisipeanu]

I installed a pair of 25 mm GP 5000 TLs back on June 15th and filled em up with 100 ml of fluid each. On Aug 20'th I hit a pothole with my front in a dark tunnel and had a puncture on the running side of the tyre. The tyre gone flat in less than a minute and I inflated it 3 times before realizing that I have not a single drop of solution. I had to borrow a wheel and go back 17 km to the car and get solution. After adding 100 ml, and inflate, the tyre was good to go. Soi my advice to you is to add 50-80 ml per month if you want to be protected. Because in the summer, in Eastern Europe (Romania and Greece), we get 35-40 degress daily. This with 4 moth is maybe for winter time

[PeterWebb-fe]

Back for a refresher 5+ months after topping up my 32mm road tires. No sound of sealant sloshing and PSI drops from 50 to 40 between rides. I'll drop to 4 month checking/topping up.