The MASSI Inf K2 Hub Kit Black / Silver is a set of spare parts designed for bike hubs. These hubs are made with high-quality materials, ensuring durability and performance on any terrain. The black and silver color scheme adds a sleek aesthetic to your bike. Compatible with most bicycles, this spare kit includes everything you need to repair or upgrade your hub, including bearings, sealing rings, an axle, cones, and locknuts. The MASSI Inf K2 Hub Kit Black / Silver is an excellent choice for any rider looking to improve the performance and reliability of their bike hubs.