I suspect the 8.25" rise stated on Amazon is in error. That would be too extreme. Harris Cyclery website says it has 140mm (5.5") rise from minimum insertion line. Total length is 210mm (8.26").
Sunlite Stem Raiser For Traditional 1 Inch (22.2mm Quill) Stems - Harris Cyclery bicycle shop - West Newton, Massachusetts
Pictured is my Dimension riser providing up to 4" rise above headset. It works fine and I think looks cleaner than the stack of spacers used with a threadless headset...
