this post was submitted on 06 Jun 2025
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Hello Wrenchers, I took the plunge to tubeless this week on my 2022 Cannondale Topstone gravel bike. Getting the tires on wasn't too hard (just messy). I used parts from my local bike store, including 2 new WTB Riddler "TCS" tires, a new valve for each tire, and about 3 ounces of Stans sealent in each tire.

But now that they're on, they're both very slowly leaking. I did the soapy water test and I can see about 5 spots on the front tire and 2 on the back tire where bubbles appear (not at the valve).

Any tips for fixing this?

Thanks!

EDITS: Added a couple of things...

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[โ€“] fake_meows@lemm.ee 1 points 1 week ago (1 children)

Which area on your tires are the leaks happening? Sidewall? Tread? Bead?

[โ€“] perishthethought@lemm.ee 1 points 1 week ago

Right at the bead, in a few places.