11/6/2023 0 Comments Onyx classic hubThat means that each time you move the drive ring one tooth over you’ll get six individual clicks. The Hydra system also uses a leaf spring system under the pawls instead of the tiny coil springs found on the Torch system. This means that all of the pawls, and the teeth on them, catch the teeth on the drive ring individually instead of simultaneously. With Hydra, there’s a 115-tooth drive ring, and 6 individually phased pawls, equally spaced from each other. This can lead to accelerated bearing wear, freehub body wear, and it can impact the efficiency to the system because the bearings that are supporting the freehub are taking an increased load. ![]() This adds a big cantilever load to the freehub body and the freehub bearing as well as the drive side hub shell bearing. Occasionally, with all of those outside forces, you’ll end up with a single pawl engagement. That's the theory at least, but when you’re actually riding down the trail there are a lot of different forces acting on the bike and flexing just about everything on it, including the hub shell, axle, and drive ring there’s constant movement and stress in the system. ![]() The older Torch series, left and Hydra, right have a different pawl, drive ring, and bearing system.Īccording to Industry Nine, having the highest engagement wasn’t the principle goal with Hydra - the primary goal was to make the most durable high engagement hub system possible.Ī standard pawl driven system has between two and four pawls that engage simultaneously, a design that's intended to equally distribute the load around the drive ring and freehub body.
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