531 pro wrote:
I have ridden my old training bike (a Peugeot Europa) continuously since about 1990, and the other day I had a strange drooping sensation on my right hand side and blow me if half of my drop handlebar didn't come off in my hands! It got me thinking, how long does this old componentry and frames last? The new 3T bars I got said to replace them after 15000km. I've done about triple that on my old bars - along with the frame. What's the consensus - should I put it out to pasture or continue living in the good old days confident that i'll never build up enough stress fatigue cycles in a brazed steel frame to have to worry about it in my lifetime...?
Be interesting to know what make of bars snapped on you. Had they been crashed previously and bent back to their original shape, did they have a ferrule?
I am still riding many bikes with old dural bars (GB, ITM, Cinelli)...some owned from new, I am not a light rider and have never had or suspected a problem - my thoughts would be this is unusual, hence my question about the contributing factors (before we get too technical about fatigue etc).
Co-founder of a V-CC section, member South Eastern Road Club and owner of - 2005 Bianchi Reparto Corse (modern), 1985 Raleigh SBDU Pro Super, 1984 Raleigh LU Corsa, 1980 Allin Stan Butler Special, 1978 Ron Cooper, 1975 Bill Philbrook tourer, 2 x very early Roberts (mid/late 1960s), 1966 Raleigh Superbe Roadster, 1964 Allin Stan Butler Special Belgique, 1951 Hobbs of Barbican S/C, 1950 Hobbs of Barbican S/C, 1947 Hetchins Super Special, 1908 Centaur Featherweight. 1988 Specialized Stumpjumper.