'84 will be a 6 speed 126 or 5 speed 120 wide dropout,
not as wide as the latest wheels need ..
curent road.. 130, ATB, 135mm ..
a hybrid with a 3 or 5 speed IGH and a double or triple chainring crankset
is 1 possibility, old RD as a chain tensioner..
does not have to move sideways with one cog.
as would be a less ambitious derailleur setup.
not requiring a frame spread procedure
I toured for decades on a 13 to 34 t 6 speed freewheel, triple crank
got a Phil Wood hub so no axle problems ever , only replaced 1 broken spoke.
Last edited by fietsbob; 02-14-12 at 03:45 PM.