Hi! I have a 1991 Trek 2300 I was given new in 1991 in trade for advertising. I LOVE this bike, except for the Ultegra shifters and the dated 7 speeds. It is pretty minty b/c I have always stored it inside. It still has the original tape, but I do need to replace it. My daughter knocked it over at the beach so sand got in my chain. I cleaned it but need to get it really clean. My husband lost my pedals... blah blah blah But the paint is almost immaculate.
A new bike is out of the question right now. I saw someone convert a vintage Bianchi to 23 sp with modern Shimano components. I know the 129mm may be problematic, but what would I need to do to convert my bike to 23 sp? I have rebuilt sewing machines and I understand how a bike works so I feel this is something I can do. A friend of ours was an iron man and built his own bikes. He is willing to help me if I get stuck.
My bike currently has vintage Ultegra with one indexed and one shifter by feel on the down.
Will a conversion like this ruin the value of the bike? I was thinking this conversion could hold me over while I save for a new carbon bike.