It is a well known vort, even among goyim, that if you have a car problem on the highway, (if you’re not already wearing one) put on a yarmulka and another Yid will stop to help you.
Probably a much less known vort, since far fewer people ride motorcycles, is that despite the tough ‘biker’ reputation that motorcyclists seem to have (see some of the comments above) the vast majority of riders, and this includes those in motorcycle clubs, are really very nice people, and WILL ALWAYS STOP TO HELP ANOTHER BIKER WITH MECHANICAL PROBLEMS THAT IS STOPPED ON THE SIDE OF THE ROAD.
So the moral of the story is, – people tend to help their own kind, – whether their own kind is Yidden and/or bikers!