Seat Posts

Bike Parts - seat posts stanadard sizes are 22.2mm or 7/8" diameter which is used for most lowrider and bmx bicycles.  For cruisers and chopper bicycles a 25.4mm or 1" diameter seat post is standard.  The top of a seat post is usually a post type or a rail type, to know which type to use, first choose the seat you want to use and take a look at the bottom of the seat.  You will be able to see from the bottom of your seat weather or not the seat post you will need is the post or rail type.