Tyre seated incorrectly

[KTM28]

I changed my front and rear tyres and balanced them.

Took them to a service station to pump up but the air pump would not work until I went home and put some air in first, odd.

Anyway I got the correct pressures in the tyres and fitted them back on the bike and took it for a spin.

It felt bumpy but I could not tell if it was the front or the rear that was not right.

Put it on a stand, the front is seated well.
The rear is seated against the rim but when I spin it I can see it is the problem.
On closer inspection althought it is seated against the rim there is a section that has gone in too far. The numbers have gone up too far under the rim.
Hard to explain so I'll attach 2 pictures of the same tyre.
The incorrect part and the correct part.

17" rims. Tyre size 120/90-17 which are the recommended size and same as I took off.

Not sure what I should do next other than take it off and try again but it may happen again and again.

[neatbik]

I take it they are tubed tyres? Best bet i reckon is deflate it and try to get the bead in place using tyre levers. What Hetzer says is correct, but only really for tubeless tyres - you dont want your tube to go bang.

[Bloggsy]

Let the tyre down and break the bead, then rub some washing up liquid round the bead and inflate till the bead is even all round, you will probably need to inflate to a higher pressure to get the bead to pop out, Simples.

[KTM28]

Thanks a lot for the replies guys. This is doing my head in, I was so pleased with myself at fitting them myself as the 2 garages I went into were so ignorant and rude I really did not want to take it to them and did not trust leaving my bike there.

It is a tubeless tyre but I have an inner tube fitted.

I put the first 15psi of pressure in at home with a foot pump because the garage air pump would not put any air in with it totally deflated for some reason.

After I got 15psi in I rode it to the garage and got it to the 27psi I wanted.

I was thinking of riding it to the garage, taking out the valve to let air out, put valve back in, squirting some soapy water around the trye edge and wheel rim and trying again with the air pump.

But after reading your suggestions it appears I need to break the bead so I will probably have to take the wheel off the bike, deflate tyre, break bead, drive the wheel to the garage to pump up.
Unless I can break the bead while the wheel is still on the bike?

[KTM28]

The front has a tube in and it's seated fine.

I assumed the rims were designed to take inner tubes.

On the new tyre wall is says "Tubeless: If fitted to a tube type rim fit a tube".

[steven_191]

isnt it the wheel that depends on wheather or not it needs a tube?

anyway. try over inflating the tyre then dropping it on the rubber all the way round. banging it on the floor can pop it into place.

[Pete.]

There's an extra button on the garage pumps that you have to press for a flat tyre, it's needed because many of them are auto-sensing so you input the pressure and it starts and stops automatically after reading your current pressure.

For seating the tyre-read the posts above. If I were you I'd be looking for a new wheel because you seem to have wrinkled the rim up on that one with the tyre levers. You might find it hard to get through the next MOT.
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132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[G]

Had similar before a few times - let the pressure out, try and move it out a bit with your hands.
Spray some WD40 (or soap solution if you're posh) around the affected areas to lubricate it.
Pump it up to 50-60psi and it should seat correctly, then lower the pressure to the pressure needed.
Very common to have this happen when doing your own trail tyres etc.

Dropping it on the floor off the bike or hitting the sides of the tyre with a hammer while inflating can help.

[KTM28]

They were some really helpful tips from you guys.
Sorted, thanks.

It's the first time I have attempted changing my own tyres.
Next time I will know what to expect and take measures to prevent this happening again.

Pete, the rim is fine. I used pieces of hose as a rim protector.
I think you may be looking at the weights I used for balancing the wheel.

[Itchy]

As an off roading trick you can always bounce the tyre off the ground to seat it, the bit where it isn't seated you put an inflated tyre about hip height and drop it (it may come back and hit you though so be careful).
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[G]

Note that rim protectors will prevent scratches but could actually make it more likely for you to bend a rim, though old hose shouldn’t be so much of an issue, but won’t be as good protection.
Yes, the tyre is actually stronger than the rim in a lot of cases!

This happens when you don’t properly push the opposite side of the tyre into dip where the spokes are – if it’s still on the bead, there can be no movement space to pull it over the opposite side.

I’ve given up using rim protectors as the tyres tend to get scratched with off road use anyway and it makes it that much more hassle.