Fitment: Fits to 125 144 200 250 300 350 380 400 450 500 505 520 525 530 540 600 SX SXF SXC SXS XC GS XCF XCW EXC MX MXC 620 625 LC4 SC ENDURO SUPERMOTO adapter: This disc brake mounting bracket adapter is a dedicated brake bracket that provides more efficient and convenient installation. CNC process: ultra light weight construction CNC machined alloy disc brake adapters with a low profile design for use with hydraulic or mechanical brakes. material: Made of aluminium alloy material, lightweight and antirust, for long service life. Benefits at a glance: Improves installation efficiency and ease of use Broad compatibility with listed models Lightweight CNC machined construction with a low profile for better clearance Works with both hydraulic and mechanical braking systems Corrosion resistant aluminum alloy for durability and long service life Use scenarios: Upgrading or converting braking systems on models listed to a different caliper or brake type for improved stopping performance Replacing a bulky or damaged stock bracket with a lightweight, corrosion resistant adapter to reduce weight and improve reliability on offroad rides Preparing a bike for racing or frequent maintenance where easy installation, precise caliper alignment, and durable performance are important