MPN: 31325317007 - Ritchey - RL1 4-Axis Stem - Stems. Ritchey RL-1 4-Axis Stem - 31.8mm Clamp, 90mm, Black. Stem Angle (deg) 84/6. We are out East at 3063 Columbia Ave. - Lancaster PA, 17603 & out West at 3225 Grande Vista Dr. - Newbury Park, CA 91320 & 165 Design Place, #105 - Sparks, NV, 89441.