The stems are CNC-machined from the highest quality 6061-T6 aluminum. And despite their size and girth, weigh less than many standard size 22.2 stems. A 53-millimeter stem weighs just 285 grams/10 ounces.
Available with 48-, 53- and 60-millimeter extensions in anodized red, blue, gold and black with laser-etched graphics and six hollow chromoly Allen bolts. Meets or exceeds ENBMX standards. They will only fit handlebars with 31.8 Ø clamp area.