Now I am not a real bicycle mechanic, but I have never experienced any rear axle breakage. This week I am reading about guys on this list breaking classic Campy narrow and semi narrow hubs. I weighed 145 lbs to 155 lbs during all my adolescent years in the 60's and 70's. During the 80's I weighed the same. During the 90's I even rode mountain bikes with narrowish 6 speed spacing. I now weigh up to 160 lbs and ride mostly 7 speed narrow and track. Is someone in this group trying to tell me that if I gain 15 lbs (heavens forbid) I will start breaking axles if I don't use freehubs. I find this hard to believe, but I am open to being educated. My experience with non suspension freewheeled mountain bikes lead me to believe that one could thrash these narrow things as hard as you wanted with impunity.
Is it really true that guys just a little heavier than I am can break a classic Campy narrow axle? What about Suntour and Shimano? Garth Libre, afraid to gain any more weight in Surfside Fl.