Q: I am considering changing the pedals on my bike. I am currently using Speedplay pedals with a stainless steel spindle, and I have two questions. First, would switching to a pedal with a titanium spindle be beneficial? Second, I’ve been told that my pedals have too much float. What is float, and how do I determine the right amount of float for me? Question submitted by Frank Blazic of Cayucos, Calif.