MicroShift

Advent MX Pro Rear Derailleur - 10/11-Speed, Clutched, Repairable Aluminum Medium Cage, 50t Max

The microSHIFT Advent MX Pro Rear Derailleur is a clutched, medium-cage drivetrain upgrade built for riders who demand stable chain control and service-friendly durability from a modern wide-range setup. Designed for Advent MX 10-speed and 11-speed systems and rated for up to a 50T max large cog, it pairs crisp shifting with a robust, repairable construction that’s easier to keep running season after season.

• 10/11-speed Advent MX compatibility - Purpose-built for Advent MX 10- and 11-speed shifting performance, with backwards compatibility for Sword and Advent X systems
• 33% stronger clutch force - Helps reduce chain slap and improves chain retention when the trail gets rough
• 50T max cog capacity - Supports today’s wide-range cassettes for lower climbing gears without resorting to a long cage
• Horizontal parallelogram + IGUS pivot bushings - Improves lateral stiffness for more consistent shifting under load while reducing unwanted movement that can feel like “ghost shifting”
• Sealed bearing pulley wheels - Smoother pulley rotation with better contamination resistance for longer service life in wet and dusty conditions
• Repairable aluminum medium cage assembly - Fully replaceable cage parts make crash damage less costly and extend derailleur lifespan
• Low-friction cable routing - Cleaner routing helps reduce friction for a lighter lever feel and reliable indexing