Zipp's SL Sprint Stem is an ideal balance of stiffness and lightweight. The stem weighs in at just 1.8g per newton meter of stiffness using SRAM s Exogram technology and was designed with feedback from top pros to meet the unrelenting demands of Grand Tour sprinters. Updated distinctive Zipp cosmeticsDesigned using SRAM Exogram technology and weighs just 123g (100mm)12 degree drop for an aggressive riding position Secure our bolt faceplace using titanium Torx T25 bolt headsZipp also tapped into expertise gained from its pioneering carbon stems and exhaustively researched the marketplace to create the SL Sprint Stem. The SL Sprint comes with its own stem cap that s designed to be aerodynamically efficient by blending into the stem body. If you want the ultimate lightweight and stiff stem for your road bike, look no further than the Zipp SL Sprint!