Can't get tyre to seat

[Dadam]

Swapped my ice tyres off the hybrid and put the summer ones back on. Schwalbe G-One Allround, 700x35. They're tubeless ready but I'm using with tubes. But try as I might I cannot get the rear tyre bead to seat in the rim properly. It took me 3 goes for the front and copious talc but I managed it in the end. But 6 tries for the rear now and no flipping joy. At two points round the rim on the drive side the tyre is 1-2mm further inside the rim causing a wobble when I spin the wheel. Unbelievably annoying as they're not new and were on this bike on the same rims all last summer with no problems.

I used loads of talc, rubbing it into the bead and the rim, and tried pumping up as fast as I could. The front seated in eventually at about 50-60 psi with a load of pinging noises but can I buggery get the rear one done. Even briefly pumped it up to 90 with some trepidation (rated 65!)

I gave it up as a bad job with mucho swearing and went in for a cup of tea before I started breaking things in frustration. Also hurt my hand with all that pumping.

So any tips? Washing up liquid? Silicone oil?

 

[sevenfourate]

From recent experience of a few tough seaters:

Very High pressure - get it to pop in. (Checking rim / tyre can take that) Fairy liquid etc to make slippery - fairly high pressure and leave it for a while….sometimes they then pop on / themselves.

Or get to high pressure - leave overnight. Deflate - then try again. You might stretch it a very small enough amount to help…..

Good luck 🙏

 

[sevenfourate]

*I had to get a pair of Schwalbe Big Ben tyres to well over 100psi on cheap wheels to pop in properly. I got the dog and wife out the room while I pumped. And turned my back on the wheel myself 😳

 

[wafter]

FWIW I've had good results with synthetic grease applied sparingly to the bead (to give good coverage but without excess everywhere).

On the few occasions I've tried this it's resulted in the tyres immediately becoming about as true as they're going to be laterally / radially without the situation of having to repeatedly depressurise and manipulate them to sit in the right place.

Of course grease will reduce the friction between both surfaces but (IMO) shouldn't have implications for the tyre's security on the rim as this is more of a mechanical interface once inflated, but use at your own risk etc..

I'd also inflate the tyres to their max pressure at initial seating to encourage them to go where they're supposed to..

 

[HLaB]

Have you tried a CO2 cannister? Thats usually my back up when the air tank fails to seat tyres.

 

[teeonethousand]

I had a similar problem with a G-one last year..tried and tried then, blessed with very little patience, I put it in the bin

 

[Bonzothechippy]

I use a small amount of washing up liquid mixed with water. Use your fingers and run it around the tyre rim on both sides. It will pop on much easier.

 

[roubaixtuesday]

I use a small amount of washing up liquid mixed with water. Use your fingers and run it around the tyre rim on both sides. It will pop on much easier.

This. And 90 Psi should be fine for seating.

 

[ebikeerwidnes]

Have you tried a CO2 cannister? Thats usually my back up when the air tank fails to seat tyres.

Most cars have a compressor nowadays - might be worth trying that
CAREFULLY!

 

[Gunk]

I use a small amount of washing up liquid mixed with water. Use your fingers and run it around the tyre rim on both sides. It will pop on much easier.

This is the method I use, inflate it until you hear a gentle pop

 

[roley poley]

Warming the tyre with hot water has worked for me.... giving it suppleness perhaps?

 

[the_mikey]

a bit of soapy water has always helped me when trying to seat tubeless tyres, that and having sufficient rim tape which helps guide the bead of the tyre into the hook of the rim. Warm tyres might help also.