Ok, that was alarming!

[vickster]

Swapped some tyres onto different wheels tonight (yes, I did this myself!!). Fairly straight forward apart from the usual cussing to get on and off the rims and sore thumbs Anyhow, pumped up to 100psi, bike sitting there, I watching TV and there's an alarming pop, similar to removing the track pump from the valve but louder. I assumed I had cocked up somewhere and split a tube! Very odd indeed however as the tyres seem to be holding air, or had done for an hour or so...

Most weird, will I find flats in the morning!?

 

[EltonFrog]

Possibly just the tyre popping on to the rim properly.

 

[vickster]

Ah interesting, never experienced that before (then I've only changed tyres a handful of times). Cheers

 

[EltonFrog]

Ah interesting, never experienced that before (then I've only changed tyres a handful of times). Cheers

It's just a guess, it has happened to me a couple of times, just the other day in fact, as I was putting the wheel back on, made me jump a bit.

 

[John the Canuck]

helps if you use talc on the rim edge and on the tyre bead

was told to me when my slightly undersize 23c didn't pop up onto the rim shoulder

and it does make a loud bang

 

[Globalti]

The tyre probably warmed up and softened then settled on the bead.

Talc is the most ignored and best dry lubricant for fitting tyres, especially tight tyres.

 

[MisterStan]

The tyre probably warmed up and softened then settled on the bead.

Talc is the most ignored and best dry lubricant for fitting tyres, especially tight tyres.

Probably the best smelling too!

 

[ianrauk]

Talc is the most ignored and best dry lubricant for fitting tyres, especially tight tyres.

Not on the FNR's it ain't.. in fact it's positively encouraged.
See @dellzeqq 's avatar

 

[Pale Rider]

A bit of talc is probably OK, but I'm wary of lubricating tyre beads.

What you don't want is to pull on the anchors, the wheel stops but the tyre keeps going.

Which is why specialist bead lubricants are designed to lube for a minute or so and then evaporate, leaving plenty of friction between wheel and tyre.

 

[vickster]

I'll use talc, well baby powder, next time. Thumbs still sore!!

 

[dan_bo]

A bit of talc is probably OK, but I'm wary of lubricating tyre beads.

What you don't want is to pull on the anchors, the wheel stops but the tyre keeps going

Which is why specialist bead lubricants are designed to lube for a minute or so and then evaporate, leaving plenty of friction between wheel and tyre.

Now that I'd like to see.

 

[Pale Rider]

Now that I'd like to see.

[QUOTE 3135954, member: 45"]Most of the friction is between tyre and tube, and tube and wheel, so I don't think it's anything worth worrying about, unless you're tubeless.[/QUOTE]

What tends to happen is the tyre movement will rip the valve off the tube, so it's like having a big blow-out.

 

[nickyboy]

Now that I'd like to see.

We need a mythbuster challenge. I get the feeling that even if you lube up the beading like nobody's business, it'll still take a massive force to get the tyre to slip when inflated. Could be wrong of course so I suggest @dan_bo spreads butter on his beading and then goes for it down Holme Moss in the name of science

 

[ianrauk]

The tyre will have to much pressure against the rim to carry on turning when braking.

 

[MisterStan]

Also, the tyre would lose traction, i.e. you'd skid, before this was an issue.