I need to buy a few tubes but I don't want to take my bike

Oops. I meant for that to go in /bqg/ sry but whatever.

You'll need the tire width too. Inner tubes are sold as something like '700c x 23' where 23 is the tire width.

700c x tire width. Tubes usually have a range of widths, like 700x25-28. Tire width printed on sidewall usually.

From a distance yours look like 25's-

>>1089854
>>1089855
ty

>>1089851
>mfw I use 700cc x23 tubes
>in 25mm tyres

>>1089867
Why?
>>1089855
I just ripped out the tube, it's a 25. Good eye.

>>1089851
Note also the ISO size numbering: (width in mm)-(bead seat diameter in mm). For a 700x25C tire, this would be 25-622. Too narrow of a tube risks bursting when inflated inside the larger tire, while too large of a tube will be wrinkled up inside the smaller tire.

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Sorry if you can't see it well, but what is this? (other than a fat gut) This is where the leak came from

>>1089872
Only ones in stock when I bought them for 2,49€ for 2 tubes.
They work well and I only get flats when something realy punktures the tyre.

>>1089874
Can't see shit, anon. Take a photo of the tube without your disgusting fatbody in the background

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>>1089895
Guy at LBS says it's from chafing. Would a small section of flattened wheel (<2") be enough? I don't think I even rode it once.

Here it is pumped up. You can see a dent in the tube. All the air comes from the corners of that dent.

>>1089922
you look like you live a sad existence.

>>1089955
It's "ok"

>>1089867
ive used 25s in 35s and it was fine. issall stretchy

>>1089955

Everything is clean and orderly, plus he has a bike.

Seems pretty good to me.

>>1089955
Harsh, bro, harsh...

>>1090084
>clean and orderly,
you must live like a cockroach

>>1090087

No, but I know more than a few people that do.

You need to know:
>tire diamater (700c)
>tire width
>valve stem type (Presta or Schrader)
Tubes also come with variable lengths of valve stems but this is generally only an issue on really deep rims. With Scrader it's almost never an issue. With Presta, if you're concerned, get the 48mm stems (rather than the 32mm stems). 32mm looks nicer when it fits though.

>>1090084
>>1089895
Haha I used to be fatter than that anon (220 lbs) and now I'm 150 at 5'11". My torso looks fucking hideous because I lost like 70 lbs riding non stop last summer. Looks like an alien hatched out of my stomach.