It would help in dating vintage bikes if we could develope some sort of tim
e line for frame characteristics. Example: In what time frame were der
ailleur mounting lugs made integral with the dropout? (I realize this
would have appeared first on upscale bikes, and take perhaps a decade to "
trickle down".) The question of whether the mount is integral or the frame
maker ecpected one to use a "hook", has an affect on the chain line, and ul
timately on how many freewheel sprockets the derailleur system will t
olerate. Other helpful guide fossils would be the rear dropout spa
cing and the inclusion of various braze-ons.
Another que
stion: When did Italvega become Univega, and where was Univega made? Tai
wan?
Chris and Pat Andrews
pandrews45@yahoo.com
Sequim, WA 98382