Say you what you will about motorcycles but when my Chain broke 30 miles from home yeaterday I was passed by 4 Lance wannbes who never slowed down or looked back, The two guys who stopped to offer assistance were riding Honda Goldwings.
I have been of the opinion lately that bicyclists ( at least in my area) are becoming increasing aloof , while I frequently get the left hand salute ( medæval salute of respect between knights)from motorcylists.