yannisg

I have been using a Dura-Ace tubeless wheel set with Hutchinson fusion 3 tubeless tires.
so far, the ride is smoother, no flats or nicks on the tires after 600 klm.
I initially added the recommended amount of Stan's sealant. Being in a hot climate I would like to added some more sealant.

Can you use the Stan's injector to add sealant through the Presta valve? Taking a section of the tire bead off the rim to top up the sealant seems to be impractical.

How often does someone add sealant?

Any feedback is appreciated.

YannisG

mechBgon

If you want to visually check on your sealant to see if it's still liquid, you'll need to remove a section of the tire from the rim anyway, so at that point you might as well just pour the fresh sealant in and be done with it.

pmt

It's been covered if you Search the Forums, but all you have to do is deflate the tire and push the bead aside. Then you can put more in. A little might drip out the sides or bottom, but not much. No need to unmount the tire or take out the valve; I have many sets of Road Tubeless wheels and thousands of kilometers on it, and have always just put the sealant in by pushing the bead aside.

yannisg

pmt, thanks for yr response.
Pls clarify. When I deflate the tire the bead is still stuck to the rim. I can push it away slightly, but how do I get the sealant in without taking part of the bead off from the inside of the rim and pouring in the sealant?

YannisG

yannisg

mechBgon, thanks.
Today when riding up hill I got a flat on my tubeless rear tire. I checked the tire, but couldn't see any damage or that anything was embedded in the tire.
Tried inflating with a CO2 cartridge, but heard air leaking. I ended up installing an inner tube. when i removed the tire bead I notice the sealant was gummy and not liquid so I assume I must add sealant, and maybe I just lost the seal and it was not a flat.

Any ideas, thanks
YannisG

pmt

You just squeeze the beads together away from the rim. Put sealant in, let go, inflate.

slims_s

The sealant being gummy was a consequence of using CO2 (see: https://messageboard.notubes.com/viewtopic.php?t=66). As the first answer on the linked thread says, i stick to a pump for training rides, CO2 only for racing.

mechBgon

You might also be interested in carrying a Hutchinson Fast'air inflator, which inflates and adds sealant in one step: https://www.excelsports.com/main.asp?...ajor=3&minor=9 There are a couple other brands with that sort of product as well.

yannisg

pmt,
Thanks for yr response.
I added sealant as you mentioned by squeezing the tire beads together and lifting the bead in the centre with a level just enough to pour additional Stan's sealant in. I notice that the existing sealant was gummy. When I tried to re-inflate the tire it just wouldn't seal. I couldn't get the bead of the tire to butt against the rim in the areas that it had moved to the centre. After a good arm workout I ended up going to a garage and using a compressor to get the tire to seat. Once it seated it was ok.

Is this normal? I was actually thinking if I didn't have access to a compressor I would have to take the tire off the rim and clean both and start at square one.

Stan sells presta valves that unscrew so you can added the sealant without braking the seal of the bead to the rim. Would that be a better method?

Appreciate the help.

YannisG

pmt

Sure, it can be normal. Once it's inflated and well seated, and has been on there a while, it should inflate easily with a good floor pump or a CO2.

Eh, I've never added it via the valve.

yannisg

pmt,
Thanks for the response.

YannisG