Описать свой велосипед(10-12 предлож.)Пожалуйста помогите!!

My mom bought me a bicycle in 2013. It was a mountain bicycle and i didnt know that, by the way its created for riding on mountains.It was black-yellow, with very thick spokes.Firstly, i gave him a name and i called him "Flash". When its passed about two months I find out that I can ride it not only in the city, but in the forests too, I was very pleased. I have my bike even nowadays, but I have slightly modified it, changed his color and etc. I have a very good story about my bicycle. One day i was heading to the supermarket by my bicycle and i left it behind the supermaket, because ive didnt had a lock then. So when ive came back, ive saw a guy riding it. Firstly, Ive stated shouting at him and running to him, I dont know why, but after that he left my bike and statred to run somewhere. I was very pleased that my bike was in a good shape and nobody had stolen him.