Attention: My new Rock Shox Reba RL has only a single upper valve if you Shox fork with 2 valves (positive and negative pressure), meaning that you will eg 100 PSI and inflate from below 95 PSI have an ancient rock from above, then not fit some pump models where the valve is perpendicular to the hose. and you have to consider whether this pump fits that 3-5cm in Röhr subscript to achieve lower valve you !!