Hope TR Stem - 35mm 35mm Clamp +/-0 1 1/8" Aluminum BlackHope TR Stem 35mm 35mm Clamp + 0 1 1 8" Aluminum Black. The TR stem is a little bit lighter and more suited to trail and all mountain use compared to the style of the Gravity stem. Optimum machining has been used to obtain the lightest weight without compromising stiffness. Opposing steerer clamp bolts provide exceptionally rigid steering characteristics while the 2 piece front plate design with a simple no gap clamping system. CNC machined from a