Need help

[Hashir]

I just got a new presta valve tube fitted , I barely have ridden till now
Today I pumped it up, I have also attached a presta to schrader conversion thing
It works fine but at midnight the air is leaking at full force
Not from the valve opening but the place where the valve and tube meet
The air is coming from the hole in the rim

The tube is BRAND NEW LITERALLY
It costs 10 dollars or and it’s not possible to go to the shop I got it from Everytime I get a problem
Pls tell me it’s a easy fix , I will try to remove the tyre tmrw and try any suggestions pls help

 

[cobbwheels]

Before you do any repairs to the tube, try to find any sharp, pokey thing inside the rim and remove it. Because if you didn't do that, you'll puncture the tube again if you put it back.

I think there's a patch for the area around the valve punctures. The patch would look like a regular patch except for a hole in the middle for the valve.

If you can't find such patch, make one yourself from an old tube and glue it to the tube using "vulcanising cement". Get one that is "cold cure" so it will cure without applying heat.

Make note, a vulcanising cement is NOT the same glue as "rubber cement". It's more expensive, much stronger and meant for tire repairs.

 

[Hashir]

here is the video of the new tube, theres a hole near the valve which is not leaking fast rn but when i start to fill it and its open by anychance it will leak

my old original Bontrager tube was patched by the previous owner and theres scuffed rubber all over the tube roughly, theres no open holes in the old tube but i think it looses air really quick compared to my rear tyre tube

Tube.mp4

drive.google.com

heres the video

 

[cobbwheels]

here is the video of the new tube, theres a hole near the valve which is not leaking fast rn but when i start to fill it and its open by anychance it will leak

my old original Bontrager tube was patched by the previous owner and theres scuffed rubber all over the tube roughly, theres no open holes in the old tube but i think it looses air really quick compared to my rear tyre tube

Tube.mp4

drive.google.com

heres the video

That looks like a manufacturing defect on the tube.

Go back to the store first before trying to repair it on your own. They may give you a free replacement tube.

Ironically, a super glue or cyanoacrylate glue might be better to use to bond the rubber back to the metal parts of the valve.

I have actually used super glue to patch small punctures on my tubes. Twice so far. Few thousand miles on it and still no problems.

 

[irfanhaidri]

I just got a new presta valve tube fitted , I barely have ridden till now
Today I pumped it up, I have also attached a presta to schrader conversion thing
It works fine but at midnight the air is leaking at full force
Not from the valve opening but the place where the valve and tube meet
The air is coming from the hole in the rim

The tube is BRAND NEW LITERALLY
It costs 10 dollars or and it’s not possible to go to the shop I got it from Everytime I get a problem
Pls tell me it’s a easy fix , I will try to remove the tyre tmrw and try any suggestions pls helpIt’s great I found this forum