When my wife and I were newly married and in college in the early 1970’s, she worked Sears and Roebuck. She bought me a Sears 10 speed bike for $100. I thought it was the coolest thing. It worked beautifully, and was the best bike I had ever ridden. You can tell I wasn't, and never have been a bike aficionado. It has been my bike for the duration. It has performed admirably for all these years. So you can begin to see how my friend's gift of the 1970’s Le Jeune TDF has been an upgrade for me. I love the bike. Others have suggested that I not spend any money to stock parts as it is a "low end" bike. I concur with that. You suggested I might get some shifters that were more substantial, since the originals (Delrin plastic) have a tendency to crack with protracted use. I'm looking into that.....My old Sears bike has Shimano Lark rear derailleurs, Shimano SIS 42T front derailleurs, and METAL Shimano shifters. My question is are any of these Shimano parts compatible with my Le Jeune?

Thanks,
The Rsterman