I'm motorcyclist in Europe, and part of my hobby, the part I like best, is mountain touring. The worst thing that ever happens - and this is speaking as someone who has been in the losing side of a competition with a delivery truck - is coming around a corner on an up-hill mountain road and facing the backside of a pod of spandex-clad, "clipped-in" wanna-be Tour-de-France-competitors riding their bikes, weaving along at walking speed 6 abreast across the entire lane (and sometimes across the entire paved road). I have no problem with sharing the road with bicyclists, but sharing is a two-way street, so to speak. I cannot count the number of times where I have had to emergency brake or drift into the oncoming lane to avoid these idiots^h^h^h^h^h^h situations. I know some motorcyclists can be PITAs as well, but I'm talking about driving within the law, at the posted speed limit, taking all necessary defensive driving precautions.
The second worst thing, is on the downhill side, where suddenly the lane markings on the roads seem to become invisible to reckless suicidal-seeming bicyclists who low-high-low curves across the entire road at ridiculous speeds that can only be achieved on steep downhill grades. Tbh, I have no problem with these guys taking their own lives in their hands, but I take serious exception at their implicit decision to involve me and my bike in their demise.
