What do I need to prepare for going to Lhasa by bike from Chengdu?

Necessary personal belongings, ID card, student ID card, bank card, bicycle key and lock money (it is best to carry twice the cash spent on the same day), mobile phone and mobile phone charger for recording supplies, notebook (for postmark and diary), watch, time and stopwatch are also acceptable. Take some medicine according to your personal situation: underwear such as band-aid (often changed) will not dry, so you must bring more. If not, throw it away. After all, I did. Socks (don't bring them, because they were almost lost in the end. . . Sandals (essential, very cool to ride) are highly recommended! ! ! ! ! ! Needle and thread (just one girl in the team) coat: at least one set of long-sleeved trousers, which can prevent mosquitoes at night. At least two sets of short-sleeved shorts. Shoes and hats: sun hat, slippers (very important items, but sandals can also be replaced) sunglasses optional lighting: flashlight, lighter toiletries: toiletries package (highly recommended! ! ! ) sunscreen, it is best to buy a slightly higher multiple and rub it often. Toilet paper, soap, shampoo, shower gel or soap, and a towel are also better. Lipstick (sometimes the mouth will crack) Tableware: water cups, Swiss army knives (more convenient if you can bring them) bring your own chopsticks or spoons, which is more hygienic. Disinfecting wet tissue paper lighters Entertainment: MP3 and chargers, cameras and chargers. Riding equipment helmet, knee pads, team uniform, riding gloves, square towel, raincoat tent camel bag Note: If you ride alone, I think you should bring something, such as needle and thread, but personal experience is like this. Anyway, in the end, throw away what should be thrown away, throw away what should be thrown away, and the most important thing is to bring more pocket money, just give it to others.