Do low profile tires need more PSI?
Yes, lower profile tires should be inflated to a higher pressure since there is less distance from the tread to the rim. Hitting any large pothole or obstacle can damage your rim. Normally, lower profile tires gives you better lateral support (inflated properly) because there is less sidewall in which to roll over.
Can you drive low profile tires on the highway?
Less Grip on Irregular Surfaces
Low-profile tires have stiff tread, which means less contact patch area on uneven surfaces. So, such tires are only for on-road use, and off-road they will be useless. Besides, rocky bumpy roads need more sidewall flexibility, which these tires lack.
Do low profile tires pop more?
Low profile tires can also pick up nails and other foreign easier causing punctures. This tends to occur from the low profile tire having a shallower tread depth which makes it more vulnerable. This can allow a nail to make it through the tire faster causing it to puncture.