Is the standard 19mm tube (usually marked 19/23C) ok in a 25mm tyre? My LBS assures me that it is, but then they don't have the 23/25C marked tubes which came with the (almost new) bike, so I'm suspicious :-)
"Michael Warner" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
Hi folks,
Is the standard 19mm tube (usually marked 19/23C) ok in a 25mm tyre? My LBS assures me that it is, but then they don't have the 23/25C marked tubes which came with the (almost new) bike, so I'm suspicious :-)
"Michael Warner" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
Hi folks,
Is the standard 19mm tube (usually marked 19/23C) ok in a 25mm tyre? My LBS assures me that it is, but then they don't have the 23/25C marked tubes which came with the (almost new) bike, so I'm suspicious :-)
Is the standard 19mm tube (usually marked 19/23C) ok in a 25mm tyre? My LBS assures me that it is, but then they don't have the 23/25C marked tubes which came with the (almost new) bike, so I'm suspicious :-)
Yes, they're fine. I've got a couple here that are also marked 27" x 1".