Advanced Bicycle Parts & Components

"Hi, I'm Aaron Phillips for Expert Village. This is called the head tube from right here to here to here. This is called a stem, goes from the top of the head tube, and clamps on to the handlebars that's called the stem. This tube right here goes from the seat post bottom to the, to the head tube, it's called a top tube. This is your seat post, and this is called a seat, also called a saddle, saddle is more common, if you wanna sound cool, that's your saddle, not your seat. This is your seat tube, this vertical tube that goes from the seat post, down to the bottom bracket, this is your down tube, goes from your head tube to the bottom bracket, it's called a down tube. This like I said, is generally referred to as just a bottom bracket, roughly this tube right here, there's a spindle that goes through here that connects your chain rings to each other, this whole assembly, is referred to as a crank, these are your chain rings, this is your crank arm, these are of course your peddles, everybody knows that. Moving kinda back up here, this tube on either side that go from the seat tube to this, conjunction with this tube, these are called the seat stays, these are your seat stays, don't ask me why there called stays. I guess it's cause it keeps the seat tube from stay, it keeps it staying in place. These are called the chain stays, and they're on either side, you got chain stays here, this is a dérailleur, it's a rear-dérailleur, also got a from dérailleur. This little baby back here is called the cassette, and its got all those gears in the back, from your easy low gear, for going up hills, to your hard gear, for when you want to go downhill, and that's most of the parts of this bike."