I have an old Schwinn Paramount I use for touring but want to change out the quill stem for an adjustable quill stem. Dimension 1 sells these, but I am confused by all the dimensions they give. I have road drop bars, so I assume they are one inch. Dimension 1 advertises (22.2), 85mm reach, 25.4mm (and 26mm on other models). Any help by someone who understands this mess would be appreciated.