Compatibility and purpose: Enables use of a 44mm 6 bolt disc rotor on a Centerlock disc brake system, expanding rotor options and simplifying parts compatibility for your bike. Material and durability: Crafted from aluminum alloy for strength, wear resistance, and reduced risk of breakage during riding. Application and installation: Suitable for mountain bikes and designed for front or rear wheel installation or replacement, providing flexible mounting options. Fit and performance: Precise thread design ensures a secure, fit on your bike and supports effective, direct braking performance. Use scenarios 1) You have a Centerlock brake caliper and want to run a 44mm 6 bolt rotor to leverage widely available 6 bolt rotors. 2) You are replacing a worn rotor on a mountain bike and prefer a 6 bolt rotor option without changing the brake system. 3) You manage multiple bikes or wheelsets and need a reliable way to mix rotor standards on front and/or rear wheels while keeping Centerlock brakes.