My 82 Schwinn World Sport modernized. I decided to cannibalized my wife's Schwinn Sporterra since she no longer rides it. Replaced the 27" steel wheels, 2 x 5 speed with the 8 speed Nexus IGH and 700 x 42c wheels & Continental City Contact tires. (only 38.5mm on these rims) Also installed a sealed bottom bracket and Truvativ Cranks. I will soon replace the twist shifter with a Alfine 8 speed trigger and may put the orginal cranks back on when I can cut that 52t ring off. No weight gain and still at 29lbs and rides nicely!
It's hard to take good pics of a silver bike outside!
About a year ago I had changed out the stem and drop bars with a Velo Postino Handlebar and riser stem. I have the original Bontrager Saddle from my Sawyer and original peddels from my Kona.