Theres a bike eating manhole cover

About as close to a highside on the street as I ever want to get.

Coming around a right hander on Racine after Jackson st and hit a manhole cover that had something like oil on it. Front started sliding and then caught on the asphault and then the rear started right after the front caught. Soon as it caught grip UP the bike came and got squirrly rather hard. Lets just say I was a bit out of the seat too.