Silca Synergetic Wet Lube Staff Picks Highly Weight Optimized Single Crown Stem Length:41.5mm Highly Weight Optimized Single Crown Stem Designed For Use With 35 mm HandlebarsDial Your Fit With Micro Increment Length Options To Suit Any Rider Size And StyleCockpit Setup Index Laser Etched Onto The Stem Assists With Accurate Upsweep And Backsweep TuningUltra Short Stack Height With True Zero Degree RiseChamfered Bar Clamp Reduces Stress Risers And Increases Handlebar Fatigue LifeHandlebar Clamp Diameter: 35 Designed with CFD and VR Mfr Claimed Weight It is the fastest oil based option we have ever tested with an incredible 500+ mile single application longevity