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-   -   innertubes (https://www.bikeforums.net/general-cycling-discussion/1259932-innertubes.html)

Sam12345 10-10-22 06:12 AM

innertubes
 
I recently brought some innertubes online and got race 28, 700c (wide) will those fit my 23 rims with 25mm tyres?

The standard race "28 700c x 25mm " fit.. fine

Outrider1 10-10-22 06:29 AM

If I'm reading this correctly, it sounds as if the tubes will be large. 700c is 27.5 inches

Koyote 10-10-22 06:34 AM


Originally Posted by Sam12345 (Post 22673993)
I recently brought some innertubes online and got race 28, 700c wide will those fit my 23 rims with 25 inch tyres?

The standard race "28 700c" fit..

I presume you have 700c x 25mm (NOT 25 inch) tires...? If so, the tubes should work fine.

Sam12345 10-10-22 06:37 AM


Originally Posted by Koyote (Post 22674003)
I presume you have 700c x 25mm (NOT 25 inch) tires...? If so, the tubes should work fine.

sorry yes 25mm

Iride01 10-10-22 08:19 AM

If there aren't any obvious wrinkles, kinks or bulges after you install it or them then all should be okay.

Besides, it's only a tube. If it blows out tomorrow it's no big loss of money. Just change it out and consider whether it was the size of the tube or something unrelated to the tube size that caused the flat like a road hazard or improper installation or other issue.

datlas 10-10-22 10:59 AM

Pretty sure they will be ok.

msu2001la 10-10-22 02:06 PM

The name "Race 28" is super confusing to me, because as near as I can tell it has nothing to do with size, but these are definitely 700c tubes.
The standard size is listed as 700x20c > 700x25c.
The wide size is listed as 700x25c > 700x32c.

I've used the standard Race 28 tubes in tires ranging from 23mm-33mm width for years and find them to be just fine for that purpose. Obviously the wides would be fine in a 25mm tire as well, I've just never seen a reason to buy the wider tubes.


https://cimg0.ibsrv.net/gimg/bikefor...419c18cee7.jpg

surak 10-10-22 02:16 PM

"28" is Euro naming for 700c rims.

Iride01 10-10-22 02:38 PM


Originally Posted by msu2001la (Post 22674395)
The name "Race 28" is super confusing to me, because as near as I can tell it has nothing to do with size, but these are definitely 700c tubes.
The standard size is listed as 700x20c > 700x25c.
The wide size is listed as 700x25c > 700x32c.

I've used the standard Race 28 tubes in tires ranging from 23mm-33mm width for years and find them to be just fine for that purpose. Obviously the wides would be fine in a 25mm tire as well, I've just never seen a reason to buy the wider tubes.


https://cimg0.ibsrv.net/gimg/bikefor...419c18cee7.jpg

I was wondering who made a inner tube to only fit one width tire. Thanks for clearing this up and showing in the proper context what is likely the issue the OP is about.

msu2001la 10-10-22 04:03 PM


Originally Posted by surak (Post 22674403)
"28" is Euro naming for 700c rims.

I thought 700c was Euro naming for 29" rims?

surak 10-10-22 04:13 PM


Originally Posted by msu2001la (Post 22674528)
I thought 700c was Euro naming for 29" rims?

According to Sheldon Brown, 700c is French sizing, 28 is German (28 x decimal) or northern European (28 x fractional). Those and 29 (marketing term for wider 622mm tires) can all mean ISO 622. I learned the 28 usage from online shopping on Euro stores.
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