前スレ
https://egg.5ch.net/test/read.cgi/bike/1618390395/
【戒め】今日見た事故を語るスレ80【予防策】
https://egg.5ch.net/test/read.cgi/bike/1626860394/
【戒め】今日見た事故を語るスレ81【予防策】
https://egg.5ch.net/test/read.cgi/bike/1633484153/