Six-Bolt Meaning in Cycling

Six-bolt is a standard method for attaching a disc brake rotor to the hub of a bicycle wheel. As the name suggests, it uses six small steel bolts to secure the metal disc in place. These bolts are arranged in a specific circular pattern that matches the holes on the hub and the rotor. This system is incredibly common and is used by almost every major manufacturer in the cycling industry. For example, a mountain biker will use a Torx wrench to tighten the six-bolt rotor before heading out on the trail. It is a very reliable and simple design that has been the industry leader for many years. I find the six-bolt system great because it is very easy to find replacement parts at any local bike shop. You just have to be careful to tighten the bolts in a star pattern to ensure the rotor sits flat. While a newer system called Centerlock exists, many riders still prefer the classic and mechanical feel of six-bolt. It provides a very strong connection that can handle the high forces of modern disc braking.