Inner tube question.

[esoxlucius]

Just got a puncture on my bike and when I took the inner tube out it was a "700x18/25 thin".

I already had some 700x18/25C inner tubes so put one of those in as a replacement. They "seemed" quite similar.

But now I'm second guessing what I've done and need a bit of reassurance. Is the replacement ok, or do I really need to be replacing it with a proper "thin" one, like the one I took out?

Thanks for any advice.

 

[N0bodyOfTheGoat]

I expect the "thin" was a super light variant, for example like Continental Supersonic tubes.

If the new tube matches the tyre size, or isn't much smaller than the tyre size, it will be fine.

 

[midlandsgrimpeur]

What @N0bodyOfTheGoat said, just a lightweight variant and your replacement is the correct size so you are all good.

 

[esoxlucius]

Just did a bit more digging. Apparently the "thin" tube is indeed a bit of a "sportier" type tube, a little thinner and more lightweight than a standard 700 18/25C. The bike is a Merida Reacto, an aero bike, so the lightweight sporty tube is supposed to offer marginally better performance.

Looks like my performance is going to nose dive now I've put a tractor inner tube in instead of a proper one, lol.

 

[Sharky]

I've put a tractor inner tube in instead of a proper one, lol

Naaah
I don't think tractors have inner tubes and are often inflated with water!

I think you are ok with what you've done.

 

[si_c]

Just did a bit more digging. Apparently the "thin" tube is indeed a bit of a "sportier" type tube, a little thinner and more lightweight than a standard 700 18/25C. The bike is a Merida Reacto, an aero bike, so the lightweight sporty tube is supposed to offer marginally better performance.

Looks like my performance is going to nose dive now I've put a tractor inner tube in instead of a proper one, lol.

You'll likely spend another second or two on a 50 mile ride. Hardly worth worrying about performance tubes unless you race - my primary criteria is how many I can get for a tenner.

 

[albion]

I recently made use of oversized(width) tubes, in the knowledge I now have a thicker understretched tube for less air leakage and marginally more puncture protection.