Light and stiff in 31.8 mm The new Syntace stem system applied to the 31.8 mm handlebar clamping dimension. If 31.8mm is being used for the handlebar clamping diameter then the rest of the stem should be made as stiff and strong. A thicker stem tube is used, this 31.8mm diameter is kept throughout the stem to the clamp area. We then leave the steerer tube clamp diameter 31.8 and use a alu bushing to bring it down to 28.6mm. Additional benefit: Without reduction shim the Force 119 fit's on every 1 1/4" fork. Unmatched combination of new, high-strength and forgeable aluminium alloy and real 3D forging. The result: The lightest stem, which is simultaneously bombproof and as stiff as other stems that weight 160 grams. Friendly to carbon steerer tubes due to the fact that we use a bushing between the stem and the steerer tube we are able to produce a better clamp area for carbon steerer tubes. Since the bushing is fully en-closed and can apply constant pressure the clamp is more secure. VR-3 approved according to VR-3 road standard RC 2002.2, the world's toughest test standard for handlebars and stems.