4K was born (like the most beautiful things in life) from a friendship. It was 2019 when we accidentally met in a garage with the excuse of buying some used components for our LC8s. A good beer then acted as a binder and we started talking about life experiences and fantasies about future projects. We thought: "Why not?" After two years of preparation we have opened 4K Parti Speciali S.R.L.! 

The sacrifices and the initial investment were quickly reflected by the feedback from our customers, we quickly realized that we were not limiting ourselves only to selling products but rather to creating relationships of friendship and trust, treating the customer as if he were one of us. and not as a simple economic transaction. 

Thanks to this natural approach to us, having been ourselves in the shoes of customers in the past years, we have surrounded ourselves with enthusiasts and pilots with whom we collaborate to test our creations, always accepting any feedback we receive (even at the cost of heavily revising the initial project). Everything you see in our catalog is made by us and by these important people, united by the common passion for motorcycles and races!