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35 comments
Assuming they're full of sealant - they are, aren't they? - try pumping them back up to pressure again. Tubeless sometimes needs a few days to settle down. Btw 80psi is a bit high for 28mm tubeless in my opinion, they'll be fine at 50-70psi.
You'd do well to get to grips with fitting tubeless yourself. It's not difficult, just different to what you might be used to. Generally I can get tubeless to seat with just a track pump so you don't necessarily have to invest in fancy chargers or whatever.
Also ensure that you inflate them initially to the upper limit of the tyre to make sure they seat properly, then reduce the pressure for comfort. On 28's I would be trying 50PSI on the front and 65PSI on the back on a combined rider/bike weight of 91kg.
I've just had a hell of a time getting the IRCs 28mm to seal on my back wheel (I'd bought them over a month ago, but have been waiting for my Schwalbes to wear out).
I tried a few tricks - seat one bead by fitting an inner tube, inflating and removing it. I was trying to get it to seat with a track pump and also a Beto tubeless canister and had no luck at all. I then thought I'd try a Milkit valve/tubeless kit to see if that made a difference and fitted it this morning.
A few hours later and still no luck at all.
Then, I thought I'd supplement the rim sealing tape (original tape supplied on the wheels) with some Gorilla tape (you can rip it to the desired width). Fitted that and re-fitted the Milkit valve. Then, I just tried the track pump and watched in disbelief as the tyre seated itself without even any sealant being added.
So, the moral of the story is to check your rim tape.
I've put 32mm Sectors on my bike and very pleased with them. See wiggle has them back in stock. They went on easy and have stayed up.
Good grip on last couple of club runs.
I had a similar problem with my Sector 28 rear tyre though not quite so bad. It was losing around 20 psi a day. After a month it stopped, I guess the sealant took a while to fully seal the tyre.
I would ride it for a couple of hours, pump it back up to 80 psi and see how much pressure you lose over the next few hours or the next morning.
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