need some help my new e-bike tire came so flat

[Tarsun2]

if the bead wasnt set properly.
if the tire was inflated too quickly.
if the tire wasnt centered on the rim.
if the tire is actually too big. like a 27.5 vs 700 mountain bike tire.
if its a crappy quality bead.

there are a few reasons for the tire to jump the bead.

also if the tire it too low on air. you can roll the bead off while riding.

[martix_agent]

haha, I've had a bead pop off at 120psi. It sounds like a gun shot. I learned my lesson real fast to check the bead fitting as I was inflating the tube.

[Tarsun2]

same.
it was an old fuji espree road bike. i was a little low on air and rode to an automotive service shop. i didnt realize it would inflate SO quickly. i saw the #s climbing so fast that it didnt register. before i could react and pull the pump from the valve, the tire exploded.
i just remember sitting on my butt, ringing in my ears, my vision being blurry, and seeing my bike laying on the ground infront of me.
i looked around thinking i was hit by a car or something major happened in the area but nothing. it was a beautiful sunny day. no one came running over. i didnt see any any people walking around. i sat there for a moment to collect myself (not sure how long) and to wait for the ringing to subside. there was white powder everywhere from the inner tube (and probably dust/dirt from the parking lot). i got up, realized what happened, and picked my bike up. i cant remember the rest but i think i just walked it home. it was just over 2 miles.

that service station has since burned down but, ill never forget that day.

i was just a little kid. probably elementary school. i still have the bike though.