Bicycle tire pressure?

[JulesMaximus]

The bike is a regular kind of hybrid bike, tires aren't exactly road bike tires although they are thicker.

Anyways, the full story is:

My moms been riding this bike around for the past 2-3 years and I suspect she never kept the tires at minimum psi, I'm guessing they were always at 30 or so.

I took the bike out of the garage yesterday because I was feeling like taking a spin, and when I got on I noticed the tires were almost flat. I said to myself "wtf, she rides around like this?" and proceeded to pump the tires. I got them to 60 psi and then rode for a bit.

Today my mom takes the bike out to go to the grocery store, and on her way there the rear tire pops. She's blaming me for "over inflating the tires".

Is she in the wrong here?

Btw this bike is ridden by her exclusively and all of it is done on the street/sidewalks.

She probably had old tires on there or just crappy department store tires/tubes. I bought some Performance brand tires and tubes for an older road bike years ago and one of them blew off the rim as I was inflating the tire, the other one blew off the rim as I was riding home from work the next day. I took them back to Performance and bought some Continentals which I had no trouble at all with even when inflated to 100 psi.

30 psi is way too low for a bicycle tire.

 

[JulesMaximus]

That looks like a typical mtb pressure. Tubular road bike tyres can go up to 130 psi.

Sewups can go up to 170 psi.

 

[thedarkwolf]

She probably had old tires on there or just crappy department store tires/tubes. I bought some Performance brand tires and tubes for an older road bike years ago and one of them blew off the rim as I was inflating the tire, the other one blew off the rim as I was riding home from work the next day. I took them back to Performance and bought some Continentals which I had no trouble at all with even when inflated to 100 psi.

30 psi is way too low for a bicycle tire.

30 psi if fine for a mtn bike tire and a lot of people run a lot closer to 20psi when they go tubeless. As long as you aren't getting pinch flats you aren't running too low when you are mtnbiking.

 

[0roo0roo]

it doesn't matter that much for a bike. just pump it up until it feels hard as a...

 

[Cathy murawski]

Does anyone know the correct pressure for crossroads tires 26x1.95. 2.5-5.5 Bar

 

[corkyg]

https://forums.anandtech.com/threads/psi-for-bike-tires.530206/

 

[MrSquished]

Her tire probably popped because you got a bit of tube stuck between the tire and the rim while inflating them up from being close to flat. 60PSI on a 75 max tire is nothing.

I have a hybrid that I ride 28cc wide tires with a max PSI of 110. I pump them up to 110 before every ride and I rarely get flats. A PSI range is a guideline, depending upon how and where you are riding the bike determines where you want your PSI. Like if I wanted a softer ride than at 110 but still fast I could go to 85 PSI instead.

 

[who?]

Does she ever check the pressures?