So I own a straight tube at the moment which has a 3.5 inch 14.5mm/18.8mm downstem. I want to buy an alex k from *** and was wondering if the 3.5 inch 18mm/18mm would fit. I'm concerned because I thought the general measurement was from the bottom of the ground joint to the bottom of the downstem but *** uses the top of the ground joint. But then when I look at one of the 14/18 listings the length from the top of the ground joint to diffused bottom does not equal the total length If anyone could help me understand the measurements it would be greatly appreciated.
you choose the length then you go by how wide of a diameter your joint is on the downstem.....only reason to use a reducing downstem is if you are wanting to use 14.5mm slides in your 18.8mm downstem. or you can get a reducing downstem that goes from 18.8 to 14.5 if you like the low profile downstems. puffer
I understand that much. I want to buy an 18/18 because I won some 18.8mm 2011bc slides from a contest. I am more concerned about the length of the downstem itself. I'll probably end up waiting till I go back to college to make the measurements myself.