sprindex

@N-60: You guys are correct that the Sprindex spring is designed (with the mechanism installed) to allow the full travel (plus a little more) regardless of the spring rate adjustment. It was designed for the maximum stress and travel when adjusted to its maximum spring rate. We had to use the super high strength "lightweight" steel in order to meet these design criteria, and it's lighter than an ordinary steel spring anyway because of it. When fully compressed, the coils are not solid (more room for movement). I'll paste a picture of it fully compressed if possible and you'll see plenty of light between the coils remaining.

Good question. Our spring had to be custom in order to be designed to be properly stressed at full stroke when adjusted to the maximum spring rate. If you added the mechanism to your existing spring, you would highly overstress that spring. Additionally, the mechanism itself blocks about 1 full coil even when adjusted to the minimum setting, so adding the mechanism to your existing spring would increase the minimum spring rate by a lot. Our spring is made with the same expensive high tensile steel used in other "lightweight" springs.

Good questions. Our spring had to be custom in order to be designed to be properly stressed at full stroke when adjusted to the maximum spring rate. If you added the mechanism to your existing spring, you would highly overstress that spring. Additionally, the mechanism itself blocks about 1 full coil even when adjusted to the minimum setting, so adding the mechanism to your existing spring would increase the minimum spring rate by a lot. Our spring is made with the same expensive high tensile steel used in other "lightweight" springs.

The coil was designed for stresses at full travel at the highest adjustable spring rate. We had to use the high-end steel in order to be able to have smaller wire cross sections to allow full travel within a normal length spring. The side benefit of that is it's lighter than a regular steel spring even with the mechanism. So, when adjusted to its highest spring rate, Sprindex will last as long as any quality branded shock spring, and when adjusted to any setting lower, it is even less stressed.

Good question, but no, the plastic pieces won't get damaged even with heavy pre-load. However, now that the spring rate can be adjusted, no reason to overly preload. Preload messes up small bump sensitivity.