an update, i have been on that ride today with the inner tube fitted and it was fine, so im going to leave it in until there is a reason to change, ill be buying a 2.1 2.3 tube tomorrow though.

i think the only problem with using a smaller tube which was meant for the tyre is that it has to be high pressure otherwise the tube takes its original shape and thus creating a gap between the tube and tyre.


thanks all