thats what I did after buying a used bike with Stans in the tires. The smell of ammonia from the Stans was overpowering.
I would do a full cleanout. There may or may not be a technical reason to do it, but that’s just my nature.
Yeah just don’t even try to mix. Even reside can cause issues if it dissolves and creates a not so awesome solution sloshing around in your tire.
I have an abandoned 946ml bottle of Silca on the shelf after deciding to give it a go from Stans Race.
A few things to be aware of - the carbon media can clump, a thin layer of dried sealant is almost impossible to remove from rubber carcasses (not so bad on cotton) and most importantly for me, silca soaks into and stains clothes.
Silca make a cleaner spray that gets any staining out easily.
I’ve been tubeless for a couple months now having had the wheels for a couple years and finally giving it a shot for the road. I have orange seal now as Stan’s never really sealed well. I notice I have a ton of these “wet” spots on both tires. Seems like small puncture but that seems like a lot. Surely if I were puncturing that much before I would have noticed it. Has anyone come across this?
yup, I call that ‘weeping’ and in my experience its not worth pulling the tire off and patching, or boring out a bigger hole and plugging.
Finally got one last week after 1200 miles on GP5000 All Season TR tires.
I leave it as-is and keep riding.
Yea I see it every now and then with my gp5000. Never thought twice about honestly…never lose any pressure.
Thanks guys! I kind of figured it was something benign but never noticed it on my other bike.
old post of mine:
Sealant coming out somewhat porous and thin sidewalls is a thing.
His pic looks like something different. Here is 3.5 year old picture of a Pirelli Cinturato after 2000 miles:
the weeping is on the center of the tread. I didn’t really lose air, just would come out to ride and see wet spots. I wasn’t losing air overnight, just annoying to look at.
When I pulled off the tire and inspected, on the inside were small wires sticking out. Sticking out enough I could poke my finger. Those are often tiny wires from radial tires that are scattered roadside.
Those holes were so tiny that the sealant couldn’t do its job.
It’s an 11 year old video, but Conti recommended brushing sealant on the inside of tubeless ready tires before mounting. https://youtu.be/1HfULR0PnZE?si=39E46TKb269suJh5
I put different tires on my gravel wheels and the sealant in one of the tires was black. Any idea why?
I had my LBS mount the tires (Maxxis Ramblers) on a set of Enve AG25. These are the second time the tires had been mounted; the first was to a different set of wheels and they were cleaned in between and stored in a cool, dry place. I really hadn’t ridden the Ramblers at all - just a few short jaunts with my boys to the local tennis courts, all on paved roads, and the tire had no punctures.
I just dropped an article that updates older how-to mount road tubeless articles I’ve written. It’s kind of a response to the most common issues I continue to see in 2024: https://velo.outsideonline.com/road/road-gear/tubeless-tire-setup-for-road-tips-and-tricks-you-might-not-know/
TLDR, stop over inflating and if it doesn’t seal initially redo the tape even if it’s newly applied.
You recommend Muc-Off tape. No personal experience, but a lot of people I talk to say that it leaves a really persistent residue that’s hard to clean off. Given the performance of their lubes and sealant, my internal bias is just avoid Muc-Off.
Otherwise, good article.
Local Specialized shop recommended Muc-Off tape, worked well and I bought some and have taped several wheels. Haven’t had any issues with persistent residue. After removing tape I use rubbing alcohol and a microfiber towel to clean rim before re-taping.
Just want to share an experience with Vittoria Corsa N. Ext 28mm.
They lasted less than 3k km. No punctures rolls ok, mounted ok, but durability, one of the worst tires I’ve ever used. Especially a tire designed to be a “training tire”.
Very disappointed.
I’ve never had issues with Muc-Off and residue. Sometimes tapes leave residue, sometimes they don’t, Muc-Off isn’t any different in my experience. The reason I like it is because you can see through it and it’s flexible.
When I was writing the article I took off two sets of tires that had been sitting for months. Two different sealants and both solidified like that. It happens and I actually think it makes life easier.