Hi all
Tried to replace my inner tube myself for the first time. Consider it my first step into maintaining my bike on my own…so of course I did something wrong.
The inner tube in my hand is the old one. The box is the one I got to replace it. Thought it was the correct one. All those numbers are confusing.
Got it on but fully inflated I can still squeeze a good amount of space between the tube and the tire.
Did I grab the wrong box? Please be gentle with your responses. I'm eager to learn but basically am starting from scratch on bike repair.
by Merc_Media
17 Comments
You’re good
Looks like the correct tube to me. I don’t understand the “ I can still squeeze a good amount….”
No it’s correct. 700 is the diameter and 35-44 is suitable tyre width. But honestly usually it’s okay if going beyond that width.
edit. You can’t have space betwen inner tybe and tyre when fullly inflated. Just physically can’t. It can ocur when very little pressure inside. Like less than 0,5 bar. And you have to inflate like 2-3 bar (look at the numbers at your tyre)
What does fully inflated mean in this case?
They match. Looks good. Does your pump have a pressure gauge ?
You need more pressure in the tire. Best with a pump that shows pressure 🐱
Then it’s not fully inflated!
I can’t see the side of the tire, but did the tire seat properly in the rim?
“Fully inflated” is the exact second before it pops from over inflation. The pressure you get on the gauge is effective the pressure of the tube pushing against the tire and rim. If you can press the tire down, you wouldn’t be at 85si
Looks correct to me.
It’s probably fine. Inner tubes tend to stretch to fill the tire.
I don’t see the actual size of your tire. It should be on the side of the casing.
(What we see is the size of the old inner tube.)
Now way there is enough PSI. Tube is correct. Issue is with the pump or how your using it.
This inner tube can fit 27 1 3/8 tires (etrto 630mm) and 700c (etrto 622mm) because it flexes. Be careful, though, when replacing your tires because these are 2 different standards.
I think it’s a good fit. Too small and you stress the tube.
Can’t tell, but it says on the tire.
what size is the tire? 700c X ??
Not showing the valve, new one is schrader but you might need presta.