stupid question re inner tubes

cosmaboy

Hi,

I have a giant scr 1 with 700x26c wheels, now looking at buying spare inner tubes as i'm useless at fixing punctures, however when i go and look to buy an innertube, the options don't add up to the above figures.....

for example

http://www.wiggle.co.uk/p/Cycle/7/Conti ... 360007390/

options given = presta 700x18-25 or presta 700x32-47

no i know there will be a obvious answer to this, but i'm not sure what ones to get....

apologies if this is super stupid!

Scrumple

I looked the other night and was lost too!
I'm guessing the two figures are a range, and that they fit any tyre within?

Wiggle has one type of continental, and Ribble has another . Tour 26, Race 28, Race 28 light etc.
Which is best for all round road bike use... ?? I just want a pack of 5 or more for my Planet X and my ride to work and back!

Which?!

pjcs

have a look at this web site

http://www.ctc.org.uk/DesktopDefault.aspx?TabID=3802

may answer your question for you

bill57

It depends on the size of tyre you're using, rather than just the rim size. For example you could fit a 32mm tyre on the 26mm rims. If it was me, I'd use 700x18-25 for up to 28mm tyres, and 700x32-47 for anything bigger. There's a lot of leeway, I wouldn't worry to much.

cosmaboy

so still a little confused, the only numbers i can see on my tyres are 700 - 26c so what would fit that?

ride_whenever

so you have 700 by 26, so get the skinny tubes (18-25)

bill57

Apologies, I thought your rim size was 26, not your tyre. 700x18-25 will be fine, the larger size is too big for a 26c tyre.

ratherbeintobago

So, just to check I'm not being really dense & misunderstanding this:

For 700x38C hybrid tyres will 700x35-40 inner tubes be OK?

RBIT

biondino

You are correct.

ratherbeintobago

Thanks! It all becomes clear (or at least, less confusing)

RBIT