Over the years, Nihilo Concepts has gained a reputation for making the best aftermarket springs in the industry. From clutch springs to valve springs, since 1999, they have been improving the performance and durability of all kinds of O.E.M. springs. Certain models have been known for having a less than perfect kick starter return spring. It may be okay for the rider to kick, but when Dad stomps on it with his size 12 it will eventually weaken and break, or possibly lose its integrity. Nihilo Concepts has completely redesigned the kickstarter return spring while keeping it legal for the stock class. They started with larger diameter military-grade stainless steel spring wire and wound it to exacting tolerances. The larger wire size gives the torsion spring better return capabilities and resistance to wear and breakage. After hundreds of hours of real world testing ,the results are in and every dad loved the new spring.