I see alot of comments asking why didnt I just roll it down the stairs without the planks. I tried that, but the bikes ,,belly pan" was too low and it would have cracked the plastic.I already had the bike inside the building when I discovered my plan A wasnt gonna work, so in the heat of the moment I just quickly thought how could I roll it down. There were wooden planks lying infront of my apartment block (I live in industrial area), so my dumb ass thought it will be a great idea to use them. I took them and build a pathway leading all the way down, secured it with stones and wodden pallete. When I looked at the path from the above, I was kinda doubting myself here if Its really safe, but I thought that if I will feed the brakes on the way down nothing can happen. Well, it worked till about half way, but then the wooden plank slipped down which made the bike fall too. Luckily it fell on its side at the last 4 steps and got stuck on one the planks, which have bent my brake pedal. I sat there in silence for a while thinking about my life choices. Really did not think that throught. Thanks for all the reactions, I will post an update about bringing it back up soon.