Sbloomer Posted October 13, 2019 Posted October 13, 2019 Any idea why my tyres seem to be “bleeding” stans sealant through the sidewalls like this? They’re hardly more than a year old.
King_Crispy Posted October 13, 2019 Posted October 13, 2019 Leave them in the sun for half an hour.Rotate them.That should seal the tyre properly from the inside, where the tyre has started to perish a bit. That often happens on tyres that have a weaker sidewall and were designed not to run tubeless
Vetseun Posted October 13, 2019 Posted October 13, 2019 I have noticed that with Spez tyres. The sidewalls seem to be very thin. If you ride the tyre a touch soft, the sidewall gets hurt and then the sealant starts weeping out. I have stopped riding these tyres.
Sbloomer Posted October 13, 2019 Author Posted October 13, 2019 Yeah these are Spez I have noticed that with Spez tyres. The sidewalls seem to be very thin. If you ride the tyre a touch soft, the sidewall gets hurt and then the sealant starts weeping out.I have stopped riding these tyres.
Odin775 Posted October 13, 2019 Posted October 13, 2019 This usually happens when you don’t have tubeless ready tires. What tires do you have?
Wayne pudding Mol Posted October 13, 2019 Posted October 13, 2019 I’m trying some new tyres, thin sidewalls and exact same issue - thought I was doing something wrong
GrahamS2 Posted October 13, 2019 Posted October 13, 2019 What spez tyres have this sidewall problem?Every set of ground controls that I’ve owned had this issue. Even the latest casings do it.
Riaan H Posted October 13, 2019 Posted October 13, 2019 Mine did that for almost 7000 km's and other than losing a little bit i sealant it was never an issue. Also, Stans is really thin and tends to do that, other sealants less so.
Capricorn Posted October 13, 2019 Posted October 13, 2019 just keep adding more sealant and than normal,and go ride (best way to keep the sealant washing over the whole tyre). Eventually they will seal.Happens with new tyres as well. Like someone else mentioned earlier, TLR or tubeless ready means only the tyre bead is tubeless compatible, NOT the sidewalls. So expect TLR tyres to bleed air, and sometimes sealant as well, via the sidewalls.
Ozzie NL Posted October 13, 2019 Posted October 13, 2019 Mine did that for almost 7000 km's and other than losing a little bit i sealant it was never an issue. Also, Stans is really thin and tends to do that, other sealants less so.Been using Stans for years and never had this issue. Reckon it's Spez thing
Chrisjanopsyfiets Posted October 13, 2019 Posted October 13, 2019 Also be careful not to overinflate the tyre when trying to seat it the first time. This damages the sidewalls - especially the lighter casings.
Chrisjanopsyfiets Posted October 13, 2019 Posted October 13, 2019 Also be careful not to overinflate the tyre when trying to seat it the first time. This damages the sidewalls - especially the lighter casings.
scotty Posted October 13, 2019 Posted October 13, 2019 Maxis Crossmark with Stans on my 2 29'ers and 26" commuter, never had an issue with bleeding.
Renier82 Posted October 13, 2019 Posted October 13, 2019 Had the same issue on racing Ralph's, now inly sticking to maxxis with their bulletproof sidewalls
Captain Fastbastard Mayhem Posted October 13, 2019 Posted October 13, 2019 Been using Stans for years and never had this issue. Reckon it's Spez thingNope. It's a thin / porous sidewall thing. You see the same with most TLR or Tubeless Ready tyres with this sidewalls. This would include Maxxis's EXO casing, Spaz'z Control & S Works casings, and pretty much any casing that isn't their strongest variety. OP's tyre also seems to have been run at a slightly lower pressure than required, due to those striations in the sidewall that generally occur when the tyre has been rolling (squirming) under load. It will seal properly with more sealant, as Capricorn says. It's par for the course with the porosity of some casings.
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