My_ACE_The Final Build. The ZITTO Stem is 50mm Reach, compared to the stock 60mm reach Stem. Though I considered it, I honestly think that a 35mm stem might be too short. I have been caught out being lazy a couple of times on lose/slippery soil, as the front end slipped out slight in turns. Nothing major, as I caught it in time, but I need to consciously keep my weight/force down and through the pedals and bars and my body centered and over the bars a little more.