>>987276>>987351These are probable causes for your flats OP.
Proper rim tape and installation is vital for reliability.
Also a metal burr or uncovered hole(not spoke hole but some rims have some holes drilled near the rim and caused flats IME)
I have had 1 flat on 10000 Km on low end tires (Schwalbe lugano,cheap as chips here)But then again I keep my tire pressure at or above 8 bar/120 psi-ish at all times.
At least 80% of tires I have to replace are due to too low of a tire pressure.
Nearly all the old tires of customers we have lying around are not worn out at all,they all have cracked sidewalls and pumping them up to their recommended pressure can often cause a sidewall blow-out.
Under inflations symptoms include;
Torn off valves due to the tire being allowed to rotate over the rim
Misplaced or broken rim tapes/strips due to the moving tube(see above reason)also moving or stressing the rim strip
Blow-outs due to fatigue on the sidewalls carcass
Pinch flats or "snakebite" flats(google em up)
A foreign object piercing right next to the puncture protections strip,which often just covers the middle part of the thread,when riding with under-inflated tires the shoulder(located right next to the thread)can also contact the road,and since there isnt any anti-puncture layer is there you can flat more easily.
Theres some some more possible things that under-inflated tires inhibit,I wont cover these here
Depending on your tire size and thus air volume and the manufacturers recommended pressure range you should check/top off your tires every 7-30 days imo.
Invest inna pump with a pressure gauge,it's really really handy.
Pic related,retards here complain about flats when they ride their tires of 10 psi for years