Made from aluminum alloy for strength, wear resistance and durability Suitable for mountain bikes and can be installed on the front or rear of the bike Ensures a precise thread fit on your bike with a unique thread design for effective and direct braking Enables use of a 44mm 6 bolt disc rotor on a Centerlock Disc brake 23 practical use scenarios Use scenario 1: You have a Centerlock disc brake system and want to run a 6 bolt rotor on either the front or rear wheel. This component makes that configuration possible. Use scenario 2: You ride a mountain bike and need compatibility with different rotor types. This part allows switching between 44mm 6 bolt rotors and Centerlock compatibility on both wheels. Use scenario 3: You perform regular braking on challenging terrain and require a durable, reliable mounting solution that maintains a secure thread fit and consistent braking performance in various conditions.