MicroShift

Advent MX 1x10-Speed Groupset - MX Trail Shifter, MX Rear Derailleur, 11-48t Cassette

microSHIFT Advent MX is a purpose-built 1x10-speed mountain bike groupset for riders who want a durable, wide-range drivetrain with a crisp, modern shift feel. This build kit pairs the MX Trail trigger shifter, MX rear derailleur, and G-Series 11-48T cassette to deliver controlled shifting under load, better chain management on rough trails, and a simple 10-speed setup with a true bailout gear for steep climbs.

Trail-focused performance highlights

1. 3° shifter engagement - Shortened engagement (from 12° to 3°) for faster, more immediate shifts that feel decisive when timing matters
2. 4x quicker shift engagement vs Advent X - Rapid shifter response supports quick cadence changes and cleaner shifts in rolling terrain
3. 33% stronger clutch force - Increases chain control to reduce chain slap and help prevent dropped chains on rough, high-vibration trails
4. Horizontal Parallelogram + IGUS bushings - Improves derailleur stability to reduce “ghost shifting,” lower shift effort, and support long-term precision
5. 11-48T wide-range cassette with SpeedRamp - Discrete shift ramps move the chain quickly and quietly, with range that keeps 1x gearing viable for both climbs and fast sections

The G-Series cassette uses a nickel-plated satin finish to help keep wear less visible, and replaceable small cogs to extend service life. A mixed-material build—chromoly steel cogs (11–28T) for wear resistance plus an aluminum spider with larger cogs (including 40T/48T)—balances durability where it matters with meaningful weight savings. The shifter’s updated cable entry and the derailleur’s easy cable routing streamline cable changes and help reduce friction for consistent shifting.