CONTROLTECH Estro stem

One of the most modern stems on the market takes advantage of our new patented system D.C.S. (Diagonal Closing System). This fork clamping system has been designed in order to evenly clamp around the fork steerer and relieve stress of the carbon fork steerer. Many stems were over tighten the bolts and often make the steerer breaks. The D.C.S. is based on the fact that the two clamp works independently with the diagonal instead of in the center as many stems does. This stem is tested and Estro is recommended for both road and MTB. Specifications: - Length: 100 mm - Angle: +- 5º - Diameter: 31,8 mm - Steerer: 28.6 mm - Material: Aluminio 7075 - Bolts: Stairlees steel - Weight: 141 g