• Tyres seated, gunk added, ran round the block a few times. Still going flat over night. Add more sealant (30ml schwalbe doc blue in each 38mm tyre) ride longer or something else? Thanks

  • can you hear air leaking from anywhere? I had a real nightmare recently with some pre-fitted tape leaking around the valve. Fixed easily after I retaped – i know it was taped in a very cold workshop, and it came off in shreds, so even if it wasnt the cold it was definitely brittle. My theory is, this meant there wasnt a good seal with the valve

  • I'd add another 30ml in each tyre and ride like 5k, should hopefully do it. Unless this a new tyre/rim combo you've not tried before in which case, all bets are off.

  • How about “read the first fucking post”!?!?! I know you are not @hippy but…

    🤣😈🤣

    If your tyres/wheels don't hold air - pump them up and cover with a washing up liquid and water solution. Bubbles will form at the point of leaks, shake wheel around so sealant gets to the leak and hopefully it will seal.

  • 30 ml of sealant in a 38 mm tyre seems a bit low to me. (I put 60 ml each into a pair of 32 mm tyres last night). But, if a tyre is losing pressure overnight, I'd be surprised if it's a shortage of sealant. Is the valve airtight, that would be top of my list to check?

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