Originally Posted by
bobbyl1966
thank you for your answer. I have road bike. Tires is 700 23. continetall. Is was okay no have flats lately start the rear wheel do that pinch flat,I weight 170 pounds. I ride only in bike trail. Is smooth surface. the tire i install without tools i learn that from video online. what i have seen happens the innertube when i put air go inside the spoke hole and do pinch flat.
That's NOT a pinch flat.
That's a flat because of improperly installed rim tape.
Get NEW rim tape of the PROPER size.
Once the old tape has moved over exposing the spoke access hole, it tends to keep doing that because the adhesive is compromised.