The most used material to make kart brake discs is cast iron, as explained in detail in the article "The secrets of the brake disc". To the excellent qualities of hardness, a positive factor when braking, the cast iron alternates with a low resistance in case of impact. In fact, all it takes is a brief exit from the track or driving over a curb to chip the disc. However, to protect the disc from shocks, just install the "disc protector slide", which is a bracket to be fastened to the chassis and a Teflon pad. The slide absorbs shocks while protecting the brake disc from breaking.

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