Originally Posted by
cupcrazy4
I went to the LBS today and asked for a 700x35C inner tube. I went home and replaced my old (rear) tube only to find that the inner tube I bought was actually 700x30C (too narrow). Is it still safe to ride this bike? Will there be a more likely chance of pinch flats or something?
thanks
Did the box actually only say 700 X 30c? Generally the box gives a range of sizes.
I don't like to use inner tubes that are a lot smaller than my tire but, given the choice, I'll ALWAYS pick one that's a little small over one that's too large. Tubes that are too big are hard to stuff into the tire cavity and are easily pinched under the tire bead.
A 30mm tube in a 35mm tire - I'd be perfectly happy with that.