This motorcycle was purchased less than a year ago from a small car dealership and is pretty fast as you can imagine. Yes that's a nitro tank mounted to the bike all hoses already installed as well as the gauges and switch i have not tested this, never had the nerve The bike overall is in very nice condition with low miles for the year. The engine has been bored out as well. I don't know to what specs sorry i just know it makes it go faster after market muffler is included. The chain was new end of summer 2014 so nearly new and its blue! Also included is the jacket which was a extra large but taken in a little bit to be a med or large. Yes you'll get the helmet too