The race face respond stem is engineered to offer an optimal combination of strength stiffness and weight forged and blasted 6061 aluminium for high strength and fatigue resistance at a reasonable weight the interlocking u shaped handlebar clamp geometry transferring more load through the stem body and not the bolts while the faceplate eliminates stress risers which could cause your bar to bend or break perfect for dham riders seeking big hit performance at an all mountain weight and bee