Removing Kenda Havoc

[Zoon]

My son has a Trek mountain bike which has seemingly developed a puncture.
I attempted to fix it and try as I might cannot get the tyre off the rim, it appears to be glued on.

Has anyone had similar problems?

[lufbramatt]

It might have Treks moulded rim strips which lock the tyre bead in place quite securely. Try pushing the tyre beads inwards towards the opposite bead- might have to stand on it- and it should pop off, make sure it's dislodged all the way round. then you can get a tyre lever in as normal.

[Shinysideup]

In addition to the above info, splash some soapy water round the bead and it wil make your life a lot easier.
Especially when refitting.

[the tribester]

Yes, they're tough. You can't even get a tyre lever between the wheel rim and the tyre bead.

If you've got a vice, you can squeeze the tyre to get it off the rims.