yorkie

As we all know tubeless tyres were not even dreamed about in pre 1965 times, the Club I am a member of (since 1981,) brought this very rule in about five or six years ago, at that time tube tyres were readily available from top manufacturers, As all Pre 65 riders who compete on rocky going know INPACT punctures are a big item, more so with the Rigids and Pre Unit machines, When time is involved in a trial we all know that taking a wheel out, repair or replace tube, wheel back in takes a LOT more time than a quick repair to a tubeless tyre. Plus forget the Cubs, James etc if you know the risk of a puncture on a big machine is less then you are going to take some better lines in sections going over large rocks rather than going round them so in my mind thats two reasons for keeping tubes in tyres.