New scooter for sale, take a look, test it for a day, if broken I'll take responsibility

A very clean scooter, honestly no flaws, brand new and extremely fast. If you buy it, test it for a day; if it breaks, I'm not responsible and I'll give you 50 back. Just strong headlights and it will take you 20 kilometers, speed reaches 90, under my warranty it's brand new. Reason for selling: financial need, I swear by God it has no issues. If I lied to you, I swear by the Kaaba it's new. Test it at your home for a full day. If it breaks, and you don't want extreme speed and stopping, the price is negotiable