MicroShift

Advent MX Rear Derailleur - 10/11-Speed, Steel Medium Cage, 50t Max

microSHIFT Advent MX Rear Derailleur is built for riders who prioritize durability, chain control, and consistent shifting under real trail load. Designed for 10/11-speed Advent MX drivetrains and tuned for wide-range gearing up to a 50T max cog, it pairs a robust linkage with a higher-force clutch to keep the chain quiet and stable when the terrain gets rough.

• Wide-range capacity (50T max) - Supports modern 1x-style gearing with a clean wrap and reliable take-up for steep climbs and fast descents
• 33% stronger clutch force - Reduces chain slap and improves chain retention on chattery trails and hard compressions
• Horizontal parallelogram design - Helps prevent “ghost shifting” while keeping shift effort controlled across the cassette
• IGUS bushings - Improves lateral stiffness for more consistent indexing and increases long-term wear resistance
• Low-friction cable routing - Promotes crisp, repeatable shifts and easier setup, especially in gritty conditions
• Backwards compatibility - Works with Sword and Advent X systems for practical replacements or drivetrain mixes
• Steel medium cage - Prioritizes strength and impact resilience for aggressive trail use