Stan’s NoTubes Race Sealant, Tire Sealant for Bike Tire Repair, 32 Fluid Ounces

Amazing product. I used this for my gravel bike!

This product is outstanding sealing my bike tire; highly recommended :-)

I read that this sealant clogs your valves, dries fast, etc. I also read its the best ever. I've been hesitating for a couple of years and finally decided to give it a try.Well, it's good. It will seal things my other sealants (stan normal sealant, orange sealant, and a couple of others) will not. That also surprised me because i didnt really expect it to work better. This will also seal broken tape (don't ask why i tested that ;-), while others wont.I've tested this on 3 bikes to be sure. A road bike with 32mm tires and rims that werent made for tubeless, and 2 mtbs with modern tubeless rims/tires.Pros:- actually seals larger holes and more little tire/rim, or even taping issues- no air loss after a month (I'd get air loss with regular sealant after a week)- it can go through your valve's stem (do remove the valve from the stem) without clogging despite official recommendations. just use an injector with a large hose and go slow. Small hoses will clog, going too fast will clog. I've checked the entire stem afterwards, no problem.- it didnt dry after a month in my 60F climateCons:- well it cost more ;-)I'll see if it dries faster after 4-5 month, but so far it seems to behave well - and in any case, the added "sealing power" is already worth it

I have been using Stans Race sealant for 3 years. I have no reason to change. This stuff has been tremendous. I do care regular Stans in case I need to add sealant on a ride but have not needed it since switching to the Race Sealant.

I've been a huge fan of just about any Stan's NoTubes product for many years now, and despite there being easy recipes for home-made sealant, I find it easier to just use Stan's sealant.I heard about the race sealant, and figured I'd give it a try. I've run it in several tires on different bikes for this season, and ultimately, I don't know as it's really any better than the normal sealant. Part of the problem here is you often don't know about flats that you didn't get because of the sealant, illustrated by the number of times I've pulled off a tire and discovered some big thing sticking into it, so it's hard to say if a different sealant works better - you can really only convincingly say that it didn't work as well.I did experience two flats (or at least brisk leaks) that the race sealant wasn't able to seal - one involved a rusty nail that measured just under 2" long and although it sealed in the tread, it came out just above the bead on the sidewall. Don't think anything would have been able to seal that. The other one was a decent sized hole that I don't think the normal sealant would have had any luck with, but from what I've seen, I would have expected the Race sealant to have had better luck. Combine that with the extra difficulty of not being able to inject the race sealant through the valve hole, I think the stuff is good, but not really worth the increase in effort over the usual stuff.

Worked perfect in my road bike tires and MTB tires. The standard for no flats!

Used both normal stans sealant and this one for years. With normal sealant from time to time was getting punctures which sealant wasn’t able to fix quickly (was loosing lot of air pressure) or at all. Switched to race sealant and didn't even notice punctures for years, while I had cuts on tires(but it was fixed that fast tha wasn't noticing during rides). Recently my new bike came with small bottle of normal sealant and I put it in my tires again… got puncture within a month which sealant wasn't able fully fix, but allowed me to get back to my car. Hole want really big, race sealant solved the problem. So, since now only race sealant again.For road tires with hight pressure, race sealant the only one which actually works, at least fir me, normal barely can fix anything.

Do not buy, Purchased in march try using it in JulyProduct defected looks like they had it in the shelf for years, clunky can’t add takin the valve offTrashed!!!