FSA Comet Stem +/-17° 60mm BlackThe FSA Comet Stem +/-17° is a lightweight stem made with 3D forged then CNC machined AL6061/T6, 4-bolt cold-forged alloy faceplate, and chromoly hardware for extreme durability. Compatible with 31.8mm handlebars. These stems give you a 40mm fork clamp stack height. Weighs about 122g (90mm version). The eye-catching Bead blasted anodized black with black graphics gives it an elegant finish.840031110732