Fixed pedal systems require that the cleat be set up perfectly to match the natural movement of the foot of an athlete through the pedal stroke. Essentially, you are locked into place with a fixed pedal, much like a ski binding.Įarly clipless pedal systems, such as the original Look pedals, were all fixed pedals. Fixed pedals do not allow rotational movement of the foot once the cleat has engaged the pedal. If your goal is to build the lightest bike possible, however, then titanium axles will help you accomplish that.Ī floating pedal stands in contrast to a fixed pedal. Knowing all of this, it is doubtful that you would see any measurable increase in performance by switching to a pedal system with titanium axles in place of one with stainless steel axles. Pedals that have their bearing in a cartridge will not have this issue, but this is something to keep in mind when looking at pedals. Furthermore, pedal systems in which the axle also serves as the bearing race can have longevity problems since the steel bearings will wear down the softer titanium axle. If you are a lightweight rider, this may not be of concern to you, but you will need to keep this in mind if you are a heavier rider. This reduced strength is why many pedals with titanium axles have rider weight limits on them. The steel versions use 8mm Allen keys to install them, and the titanium version uses a 6mm key, allowing Look to remove less material from the titanium axle. ![]() You can see attempts to deal with this on a Look Keo pedal, for example. As a result, you will have a pedal system with weaker and more flexible axles. Given that the shape of the pedal axle is not going to change much between a steel axle and a titanium one because of mechanical constraints, there will not be any material added to increase the strength of the titanium axle through increased volume. However, titanium is also not as strong, stiff or as hard as steel per unit volume. This is because titanium is less dense than steel and is therefore lighter per unit volume. Question submitted by Frank Blazic of Cayucos, Calif.Ī: Pedals with titanium spindles will be slightly lighter than pedals with stainless steel axles. What is float, and how do I determine the right amount of float for me? First, would switching to a pedal with a titanium spindle be beneficial? Second, I’ve been told that my pedals have too much float. ![]() I am currently using Speedplay pedals with a stainless steel spindle, and I have two questions. Q: I am considering changing the pedals on my bike. For access to all of our training, gear, and race coverage, plus exclusive training plans, FinisherPix photos, event discounts, and GPS apps,Ĭhristopher Kautz answers the question: What does it mean for a pedal to have float?
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