What is the best way to adjust the rear derailer on my pre-1980 Schwinn World Tourist bike given that there are no adjusting screws on it? - Quora
What is the best way to adjust the rear derailer on my pre-1980 Schwinn World Tourist bike given that there are no adjusting screws on it? - Quora
![How do I regulate this Shimano Positron so that, when I go to the highest gear, the chain does no slip out? : r/bikewrench How do I regulate this Shimano Positron so that, when I go to the highest gear, the chain does no slip out? : r/bikewrench](https://preview.redd.it/g7vabp1yyca11.jpg?auto=webp&s=0758d7a2880fccbb4dc9533c6453086566dd5768)