Trailmech Hubs Sound – Ranked

How loud your hub is? This is the topic that polarizes opinions. For some of us a noisy hub not only adds to personalization of our ride. Other say about its more practical purpose of as alerting others, who otherwise would remain unaware of our presence. In certain circumstances this seems to be a safety feature. Urban riding and riding in bike parks are good examples. Those who regularly takes part competing in endurance disciplines, say that riding a noisy hub, when sitting on someone else’s wheel, helps to add on the pressure on a pursued rider. Arguably, the noise that is coming from behind may be a distracting factor. At the same time, if not for descents, you are not likely to be freewheeling that much when racing. Pretty the opposite to a regular ride with one’s fellow riders. When there is no time pressure and less time is spent powering the cranks. In those cases, the noisy hub may be annoying. It may disturb a friendly chat or break the silence of natural surroundings.

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Hub Engagement Designs – Part 2

In Part 1 we covered some of the engagement mechanisms theory. Whilst these concepts are not too excited to dive into, they are important to understand the practical implementations of various designs that we cover below.

In the classical pawl and toothed ring design the rotational force is transferred with the help of several pawls. In general, three to six pawls are used. Each one carries a substantial part of the total load. But there are other designs, where the distribution of the rotational force is more balanced. The two widely known are of DT Swiss and Chris King. In mid-90’s DT Swiss acquired a technology and since then made it one of the famous designs known as the “Star Ratchet”. It is available in several variants for road and MTB, ranging from 18 to 54 teeth. The main difference compared with the pawls, is that the system has two parts, often referred as rings.

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