It is a similar idea to how your cassette and freehub line up. These splines line up with other splines on your hubs body and this how they link up. The inner aluminum piece has a row of little splines at its center. You’ll find an outer steel part that does the braking is mated to an aluminum part that connects to your hub. The reason for this is that Centerlock rotors come in two parts. One of the downsides that everyone mentions about Centerlock rotors is that they are a little heavier than 6 bolt rotors. The tool you use is the Shimano TL-LR10, you can also use it to tighten your cassette. They were brought to market by Shimano, and instead of using 6 small Torx key bolts to fit them to your hub, they use a new tool. Pros and cons of 6 bolt disc rotorsĬenterlock rotors are the newest rotors on the market. You should also always be able to see the size and not just the style that you need. 6 bolt rotors will normally be lighter than Centerlock rotors, and you should find them a lot easier if you need a new one. Your rotor will come off center and begin to rub against your disc pads. If one bolt stays tight and the one opposite it loosens. As you ride, you can start to shake and loosen the bolts. You’ll also want to make sure that you regularly check the torque on your bolts. You’ll end up then with a ride full of skiffing and annoying noises unless you took your Torx key with you. If you do not follow this pattern, you’ll find that you have very likely fitted your rotor off center. You also have to follow a star style pattern as you tighten the bolts. If you overtighten them and don’t strip anything you may find that they fail when out riding. Always use a torque wrench when you're fitting them and take care. 6 bolt rotors use 6 Torx head bolts to attach them to your hub.įixing 6 bolt rotors to your hub can be a fun process. In the time that has passed they have gone on to being the industry preferred option for mounting rotors to your hub. What Are 6 Bolt Disc RotorsĦ bolt rotors go back to the dawn of disc brakes on mountain bikes. As long as once you’ve attached your rotor to your hub and it is centered correctly, you’ll see that your brakes don’t care and will grab it and slow you down regardless. The reason for this is that 6 bolt or Centrelock names refer to how you attach your rotor to your hub. It does not matter what the make or manufacturer is of your disc brakes. Both Centrelock and 6 bolt hubs and rotors will work with your disc brakes. There is one important thing to first note with Centrelock or 6 bolt rotors. Which is better and which should I fit to my bike is a question many new cyclists are asking themselves. These terms refer to way in which your disc brake rotors are attached to your bike’s hubs. If you are thinking about new bike wheel, hubs, or disc brakes you may have come across the terms 6 bolt or Centerlock.

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