I weigh 220 and ride a touring bike. I replaced the tires with a 28C to get a little more speed.

Bike is cannondale 700 (aluminum) and the saddle just beats me to death. I installed a compression seat post and that helps some.

Normally I fill by tires to 120 lbs. Recently read an article that suggested I should only be using 80 lbs. So I am confused.

Do higher PSI help prevent flats or rim damage? lowering the pressure should improve the ride which would let me go longer.

Looking for opinions, recommendations. Thanks, Len