I knew a guy that was driving a small motorbike, when a car forced him to the right. He fell on a bollard like the ones shaped as pencils in the article linked,

I knew a guy that was driving a small motorbike, when a car forced him to the right. He fell on a bollard like the ones shaped as pencils in the article linked, broken badly his chest and dying soon after. According to witnesses, the hit was at slow speeds, so it could happen to a bike.