AquariaGuy
07-06-03, 02:15 PM
Is a pinch flat, a long rip where u can't repair with a repair kit, because the patches are not big enough?
Puncture just a little rip?
Puncture just a little rip?
Mountain Biking - Difference between pinch flat and puncture?
Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.View Full Version : Difference between pinch flat and puncture?
troie
07-06-03, 02:52 PM
Pinch Flat
A hole in an inner tube caused by getting the tube pinched between the rim and a hard, sharp object, such as a rock, curbstone or the edge of a pothole.
Pinch flats (also known as "snakebites" because there are usually two small holes in the tube, as if made by the fangs of a snake) are usually caused by carelessness or riding under-inflated tires. They can also be caused by the use of a tire which is too narrow for the weight it is asked to carry.
If the tire is too soft, or too narrow, it is easy for it to bottom out when striking an obstruction.
If the tire is hard enough and plump enough to carry the weight, the air will keep the tube from being pinched between the rim and the road hazard.
Puncture is a penetration of both the tube and the tire. Pinch flat is just a hole in the tube, not the tire.
A hole in an inner tube caused by getting the tube pinched between the rim and a hard, sharp object, such as a rock, curbstone or the edge of a pothole.
Pinch flats (also known as "snakebites" because there are usually two small holes in the tube, as if made by the fangs of a snake) are usually caused by carelessness or riding under-inflated tires. They can also be caused by the use of a tire which is too narrow for the weight it is asked to carry.
If the tire is too soft, or too narrow, it is easy for it to bottom out when striking an obstruction.
If the tire is hard enough and plump enough to carry the weight, the air will keep the tube from being pinched between the rim and the road hazard.
Puncture is a penetration of both the tube and the tire. Pinch flat is just a hole in the tube, not the tire.
moabrider47
07-06-03, 07:29 PM
A pinch flat will often appear as a rip in the side of the tube. Most often, it will look like a "snakebite" in the tube. A puncture is just what it sounds like - something punctures the tube from outside or inside the tire.
-Moab
-Moab
AquariaGuy
07-06-03, 09:29 PM
Thanks for the clarification guys! I think i got a pinch flat last time, cuz my tube made a "boom" sound. And it looked like as if u punched through a piece of paper and it waS HUGE lol
Rev.Chuck
07-06-03, 09:40 PM
If you have a huge hole in your tube and the tire did not blow off the rim, check the tire very closely for a hole in the casing that the tube may have pushed thru. This can happen if the brake pad has rubbed against the tire, wearing thru it or if the side wall has just aged and dried out.
If the tire did come off it may have been installed with the tube seated between the tire and rim or the bead may not have been seated properly.
If the tire did come off it may have been installed with the tube seated between the tire and rim or the bead may not have been seated properly.
moabrider47
07-07-03, 06:44 AM
AquariaGuy,
If you had a giant hole in the tube, it was most likely a blowout caused by sand or some other foreign object stuck between the tire and the tube. I've always thought of a pinch flat as something cause by the tube getting caught between the tire's sidewall and the rim while riding because not enough pressure is being run the in tube.
-Moab
If you had a giant hole in the tube, it was most likely a blowout caused by sand or some other foreign object stuck between the tire and the tube. I've always thought of a pinch flat as something cause by the tube getting caught between the tire's sidewall and the rim while riding because not enough pressure is being run the in tube.
-Moab