My tyre just exploded with a terrifying bang

Myclex2

Awhile ago I bought one of the vertical 2 handed pumps and have been blowing my front tyre up to the designated pressure of 80psi. While I was out on a ride yesterday I got a flat and replaced the inner tube, which I then pumped up to a lower pressure with my standard pump. Today I used the beefier pump to get the tyre up to 80psi again. 5 minutes later it exploded.

Please can anyone tell me what is the most likely cause of this?
Does the new inner tube have to be one that has an adequate pressure rating, or was the problem more likely caused by a badly fitted tube or something sharp lurking around the tyre innards?

Regards,
Mycle

royboy11

If it's a mountain bike tire that's too high of pressure. Try the 30-40psi range.

If it's a road tire then somethings not quite right.

ddraver

i reckon you ve trapped the tube between the tyre and the rim, very easy on a skinny wheel or when ypu re not quite paying attention, was there a massive hole in the tube?!

Try pumping a bit of air into the tyre and then spin it round to check everything looks good, no pinching and the tyre is seating on the rim properly, then carry on until to full pressure

Myclex2

royboy11 wrote:

If it's a mountain bike tire that's too high of pressure. Try the 30-40psi range.

If it's a road tire then somethings not quite right.

It's a road bike, so i think your second option is the one.

Regards,
Mycle

Myclex2

ddraver wrote:

i reckon you ve trapped the tube between the tyre and the rim, very easy on a skinny wheel or when ypu re not quite paying attention, was there a massive hole in the tube?!

Try pumping a bit of air into the tyre and then spin it round to check everything looks good, no pinching and the tyre is seating on the rim properly, then carry on until to full pressure

Thanks for the good advice, I'll check more carefuly next time. The big bang is quite fun but the resulting flat tyre detracts from the entertainment too much.

Regards,
Mycle

Ticaboy

Is the rim tape in place and straight? Could be the tyre is poking through to a sharp edged spoke hole??

The Joe Show

Could be the tyre was not seated properly, causing the tube to force its way out to the side, which can cause it to burst from pinching the tyre.

harryo

dh tubes can normaly handle 80 psi mountain bike about 40. 50 if u push it

Father Faff

Well I pump my roadie tyres to 100lbs or even 110lbs if I want a really hard ride and they ain't burst yet. I've had that problem on an MTB tyre when I didn't realise the sidewall had worn through and the tube pushed out the side but you'd be blind not to notice that!

chunkytfg

If it is a road tyre then 100psi is quite normal.

I had one do exactly teh same as yours did when i got it trapped under the tyre rim after a tube change. My only thing was it was a slime filled tube that let go at about 3 am waking up all 6 occupants of the block of flats i live in with them thinking a bomb had gone off

ddraver

yeh...i did mine to 120 psi for my commute...