If you want a great story of old bikes and older bikers I strongly recommend this.https://www.amazon.com/Last-Hurrah-Beijing-Arnhem-2005/dp/0954791258
There is a video as well which really shows how tough it got at times for 70 + bodies.
Des is a friend of mine and he is the real deal. He has an amazing ability to make a worn out bike run another 1000 km further than seems humanly possible !!!!!!! There are a couple of interviews on you tube as well.https://www.youtube.com/watch?v=jxiJRolmDZIhttps://www.youtube.com/watch?v=7GDu0MfnWU8